public GraphicsPlus(HDC hdc)
{
GpGraphics Graphics = new GpGraphics();
lastResult = NativeMethods.GdipCreateFromHDC(hdc, out Graphics);
SetNativeGraphics(Graphics);
}
public GraphicsPlus(HDC hdc,
HANDLE hdevice)
{
GpGraphics Graphics = new GpGraphics();
lastResult = NativeMethods.GdipCreateFromHDC2(hdc, hdevice, out Graphics);
SetNativeGraphics(Graphics);
}
public static extern bool TransparentBlt(HDC hdcDest, int xDest, int yDest, int cxDest, int cyDest, HDC hdcSrc, int xSrc, int ySrc, int cxSrc, int cySrc, COLORREF crTransparent);
public static extern bool SetWorldTransform(HDC hdc, ref XFORM xf);
public static extern int SetStretchBltMode(HDC hdc, int nMode);
public static extern COLORREF SetBkColor(HDC hdc, COLORREF crBack);
public static extern bool ModifyWorldTransform(HDC hdc, ref XFORM xf, uint nMode);
public static extern bool GetTextExtentPoint32(HDC hdc, string stText, int cch, out SIZE size);
/// <summary>
/// Creates a bitmap compatible with the given <see cref="HDC"/> via <see cref="CreateCompatibleBitmap"/>
/// </summary>
public CreateBitmapScope(HDC hdc, int cx, int cy)
{
HBitmap = CreateCompatibleBitmap(hdc, cx, cy);
}
public static extern BOOL GetTextExtentPoint32W(HDC hdc, string lpString, int c, ref Size psizl);
public static extern CharacterSetUint GetTextCharsetInfo(HDC hdc, out FONTSIGNATURE lpSig, uint dwFlags = 0);
public static extern CharacterSetUint GetTextCharset(HDC hdc);
public static extern bool GetCharWidth(HDC hdc, uint iFirst, uint iLast, [Out] int[] lpBuffer);
public static extern BOOL PatBlt(HDC hdc, int x, int y, int w, int h, ROP rop);
public static extern BOOL GetTextMetricsW(HDC hdc, ref TEXTMETRICW lptm);
public static extern int GetDeviceCaps(HDC hDC, int nIndex);
public static extern uint GetTextAlign(HDC hdc);
public static extern void DrawStatusText(HDC hdc, in RECT lprc, string pszText, SBT uFlags);
public static extern bool GetWorldTransform(HDC hdc, out XFORM xf);
public static extern HGDIOBJ GetCurrentObject(HDC hdc, OBJ type);
public static extern bool ReleaseDC(HWND hwnd, HDC hdc);
public static extern BOOL UpdateLayeredWindow(HWND hWnd, HDC hdcDst, POINT pptDst, SIZE psize, HDC hdcSrc, POINT pptSrc, COLORREF crKey, BLENDFUNCTION pblend, DWORD dwFlags);
public static extern bool SetBrushOrgEx(HDC hdc, int xOrg, int yOrg, out POINT pt);
public static extern BOOL BitBlt(HDC hdc, int x, int y, int cx, int cy, HDC hdcSrc, int x1, int y1, DWORD rop);
public static extern int SetTextCharacterExtra(HDC hdc, int nCharExtra);
public static extern int ReleaseDC(HWND hWnd, HDC hDC);
public static bool TextOut(HDC hdc, int x, int y, string stText)
{
return TextOut(hdc, x, y, stText, stText.Length);
}
public unsafe static extern BOOL GetViewportOrgEx(HDC hdc, out Point lppoint);
public static GraphicsPlus FromHDC(HDC hdc)
{
return new GraphicsPlus(hdc);
}
public void GetClipRgn_NoRegion()
{
// Create a bitmap using the screen's stats
HDC hdc = CreateCompatibleDC((HDC) default);
public HRESULT Draw([NativeTypeName("DWORD")] uint dwDrawAspect, [NativeTypeName("LONG")] int lindex, void *pvAspect, DVTARGETDEVICE *ptd, HDC hdcTargetDev, HDC hdcDraw, [NativeTypeName("LPCRECTL")] RECTL *lprcBounds, [NativeTypeName("LPCRECTL")] RECTL *lprcWBounds, [NativeTypeName("BOOL (*)(ULONG_PTR) __attribute__((stdcall))")] delegate *unmanaged <nuint, BOOL> pfnContinue, [NativeTypeName("ULONG_PTR")] nuint dwContinue)
public unsafe static extern BOOL SetWindowOrgEx(HDC hdc, int x, int y, Point *lppt);
public static extern COLORREF GetPixel(HDC hdc, int x, int y);
public HRESULT RepaintVideo(HWND hwnd, HDC hdc)
{
return(((delegate * unmanaged <IVMRWindowlessControl *, HWND, HDC, int>)(lpVtbl[11]))((IVMRWindowlessControl *)Unsafe.AsPointer(ref this), hwnd, hdc));
}
public static bool GetTextExtentPoint32(HDC hdc, string stText, out SIZE size)
{
return GetTextExtentPoint32(hdc, stText, stText.Length, out size);
}
public static extern HDC CreateCompatibleDC(HDC hDC);
public static extern bool GetTextMetrics(HDC hdc, out TEXTMETRIC lptm);
public unsafe static extern BOOL OffsetViewportOrgEx(HDC hdc, int x, int y, Point *lppt);
public static extern int IntersectClipRect(HDC hdc, int nLeft, int nTop, int nRight, int nBottom);
public static extern HBITMAP CreateDIBSection(HDC hdc, IntPtr pbmi, DIB usage, byte[] ppvBits, IntPtr hSection, uint offset);
public static extern bool Rectangle(HDC hdc, int nLeft, int nTop, int nRight, int nBottom);
public HRESULT SelectPicture(HDC hDCIn, HDC *phDCOut, HHANDLE *phBmpOut)
{
return(((delegate * unmanaged <IPicture2 *, HDC, HDC *, HHANDLE *, int>)(lpVtbl[11]))((IPicture2 *)Unsafe.AsPointer(ref this), hDCIn, phDCOut, phBmpOut));
}
public static extern HGDIOBJ SelectObject(HDC hdc, HGDIOBJ hobj);
public HRESULT Render(HDC hDC, [NativeTypeName("LONG")] int x, [NativeTypeName("LONG")] int y, [NativeTypeName("LONG")] int cx, [NativeTypeName("LONG")] int cy, [NativeTypeName("OLE_XPOS_HIMETRIC")] int xSrc, [NativeTypeName("OLE_YPOS_HIMETRIC")] int ySrc, [NativeTypeName("OLE_XSIZE_HIMETRIC")] int cxSrc, [NativeTypeName("OLE_YSIZE_HIMETRIC")] int cySrc, [NativeTypeName("LPCRECT")] RECT *pRcWBounds)
{
return(((delegate * unmanaged <IPicture2 *, HDC, int, int, int, int, int, int, int, int, RECT *, int>)(lpVtbl[8]))((IPicture2 *)Unsafe.AsPointer(ref this), hDC, x, y, cx, cy, xSrc, ySrc, cxSrc, cySrc, pRcWBounds));
}
public static extern int SetBkMode(HDC hdc, int iBkMode);
public static extern COLORREF GetTextColor(HDC hdc);
public static extern int SetGraphicsMode(HDC hdc, int nMode);
public static extern BOOL LPtoDP(HDC hdc, ref RECT lppt, int c);
public static extern uint SetTextAlign(HDC hdc, uint nMode);
public static extern HDC CreateEnhMetaFile(HDC hdc, string lpFilename, ref RECT lprc, string lpDesc);
public static extern COLORREF SetTextColor(HDC hdc, COLORREF crText);
internal bool RenderPage(Graphics gfx)
{
//delete m_RenderContext;
//m_RenderContext = new HdcRenderContext(wdc.m_hdc);
gfx.TranslateTransform(-this.posOffset.X, -this.posOffset.Y);
gfx.SetClip(new Rectangle(this.virtualPage.X + 1, this.virtualPage.Y + 1, this.virtualPage.Width - 1, this.virtualPage.Height - 1));
float scaleX = virtualPage.Width / this.pageSize.Width;
float scaleY = virtualPage.Height / this.pageSize.Height;
//gfx.SetSmoothingMode(SmoothingModeAntiAlias);
//PaintBackground(gfx);
#if DRAW_BMP
Matrix matrix = new Matrix();
matrix.Translate(virtualPage.X, virtualPage.Y);
matrix.Translate(-this.posOffset.X, -this.posOffset.Y);
//matrix.Scale(scaleX, scaleY);
gfx.Transform = matrix;
#if DRAW_X
gfx.DrawLine(Pens.Red, 0, 0, pageSize.Width, pageSize.Height);
gfx.DrawLine(Pens.Red, 0, pageSize.Height, pageSize.Width, 0);
#endif
if (this.renderEvent != null)
{
Bitmap bmp = new Bitmap(this.virtualPage.Width, this.virtualPage.Height, gfx);
Graphics gfx2 = Graphics.FromImage(bmp);
gfx2.Clear(this.pageColor);
gfx2.ScaleTransform(scaleX, scaleY);
gfx2.SmoothingMode = SmoothingMode.HighQuality;
XGraphics xgfx = XGraphics.FromGraphics(gfx2, new XSize(this.pageSize.Width, this.pageSize.Height));
try
{
this.renderEvent(xgfx);
gfx.DrawImage(bmp, 0, 0);
}
finally
{
bmp.Dispose();
}
}
#else
Matrix matrix = new Matrix();
matrix.Translate(virtualPage.X, virtualPage.Y);
matrix.Translate(-this.posOffset.X, -this.posOffset.Y);
matrix.Scale(scaleX, scaleY);
gfx.Transform = matrix;
#if DRAW_X
gfx.DrawLine(Pens.Red, 0, 0, pageSize.Width, pageSize.Height);
gfx.DrawLine(Pens.Red, 0, pageSize.Height, pageSize.Width, 0);
#endif
if (this.renderEvent != null)
{
gfx.SmoothingMode = SmoothingMode.HighQuality;
XGraphics xgfx = XGraphics.FromGraphics(gfx, new XSize(this.pageSize.Width, this.pageSize.Height));
try
{
this.renderEvent(xgfx);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Exception");
}
}
#endif
// Old C++ stuff, may be useful later...
#if false
switch (m_mode)
{
case RenderModeDirect:
{
delete m_PreviewMetafile;
m_PreviewMetafile = NULL;
float cxPage = Metric::MillimetersToPoints(m_dimPage.cx / 10.0f);
float cyPage = Metric::MillimetersToPoints(m_dimPage.cy / 10.0f);
float scaleX = virtualPage.Width / cxPage;
float scaleY = virtualPage.Height / cyPage;
Graphics gfx(m_RenderContext);
gfx.SetSmoothingMode(SmoothingModeAntiAlias);
PaintBackground(gfx, &virtualPage);
Matrix matrix;
matrix.Translate((float)virtualPage.X, (float)virtualPage.Y);
matrix.Translate((float)-m_posOffset.x, (float)-m_posOffset.y);
matrix.Scale(scaleX, scaleY);
m_RenderContext->SetDefaultViewMatrix(&matrix);
gfx.ResetTransform();
if (m_PreviewRenderer && m_PreviewRenderer->CanRender())
{
m_PreviewRenderer->Render(&gfx, m_Page);
}
}
break;
case RenderModeMetafile:
{
Graphics gfx(m_RenderContext);
if (m_PreviewMetafile == NULL)
{
float cxPage = Metric::MillimetersToPoints(m_dimPage.cx / 10.0f);
float cyPage = Metric::MillimetersToPoints(m_dimPage.cy / 10.0f);
//float factor = 72.0f / 96.0f;
Rect rcLogicalPage(0, 0, (int)cxPage, (int)cyPage);
RectF rcFLogicalPage(0, 0, cxPage, cyPage);
//DeviceName devname;
//DESKTOP::QueryDefaultPrinter(devname); //HACK DRUCKER MUSS DA SEIN!
//DeviceMode devmode(devname);
//HDC hdc = ::CreateIC(devname.m_szDriver, devname.m_szDevice, devname.m_szOutput, devmode.m_pdm);
//HDC hdc = m_Graphics->GetHDC();
//HDC hdc = ::GetDC(NULL);
HDC hdc = ::CreateIC("DISPLAY", NULL, NULL, NULL);
float dpiX = gfx.GetDpiX();
float dpiY = gfx.GetDpiY();
// Even Petzold would be surprised about that...
// Display | LaserJet
// DPI 96 : 120 | 300
// physical device size in MM ---------------------------------------------
int horzSizeMM = ::GetDeviceCaps(hdc, HORZSIZE); // = 330 : 254 | 198 (not 210)
int vertSizeMM = ::GetDeviceCaps(hdc, VERTSIZE); // = 254 : 203 | 288 (hot 297)
// device size in pixel
int horzSizePixel = ::GetDeviceCaps(hdc, HORZRES); // = 1280 : 1280 | 4676
int vertSizePixel = ::GetDeviceCaps(hdc, VERTRES); // = 1024 : 1024 | 6814
// 'logical' device resolution in DPI
int logResX = ::GetDeviceCaps(hdc, LOGPIXELSX); // = 96 : 120 | 600
int logResY = ::GetDeviceCaps(hdc, LOGPIXELSY); // = 96 : 120 | 600
// physical pixel size in .01 MM units
// accidentally(?) the result of GetPhysicalDimension!
//float X1 = 100.0f * horzSizeMM / horzSizePixel; // = 25.781250 : 19.843750 | 4.2343884
//float Y1 = 100.0f * vertSizeMM / vertSizePixel; // = 24.804688 : 19.824219 | 4.2265925
// now we can get the 'physical' device resolution...
float phyResX = horzSizePixel / (horzSizeMM / 25.4f); // = 98.521210 : 128.00000 | 599.85052
float phyResY = vertSizePixel / (vertSizeMM / 25.4f); // = 102.40000 : 128.12611 | 600.95691
// ...and rescale the size of the meta rectangle.
float magicX = logResX / phyResX; // = 0.97440946 : 0.93750000 | 1.0002491
float magicY = logResY / phyResY; // = 0.93750000 : 0.93657720 | 0.99840766
// use A4 page in point
// adjust size of A4 page so that meta file fits with DrawImage...
RectF rcMagic(0, 0, magicX *cxPage, magicY *cyPage);
m_PreviewMetafile = new Metafile(hdc, rcMagic, MetafileFrameUnitPoint,
EmfTypeEmfPlusOnly, L"some description");
SizeF size;
float horzRes, vertRes;
float height, width;
MetafileHeader metafileHeader;
// GetPhysicalDimension returns physical size of a pixel in .01 MM units!!
m_PreviewMetafile->GetPhysicalDimension(&size);
horzRes = (float)m_PreviewMetafile->GetHorizontalResolution();
vertRes = (float)m_PreviewMetafile->GetVerticalResolution();
height = (float)m_PreviewMetafile->GetHeight();
width = (float)m_PreviewMetafile->GetWidth();
m_PreviewMetafile->GetMetafileHeader(&metafileHeader);
Graphics gfxMf(m_PreviewMetafile);
dpiX = gfxMf.GetDpiX();
dpiY = gfxMf.GetDpiY();
m_PreviewMetafile->GetPhysicalDimension(&size);
horzRes = (float)m_PreviewMetafile->GetHorizontalResolution();
vertRes = (float)m_PreviewMetafile->GetVerticalResolution();
height = (float)m_PreviewMetafile->GetHeight();
width = (float)m_PreviewMetafile->GetWidth();
m_PreviewMetafile->GetMetafileHeader(&metafileHeader);
gfxMf.SetPageUnit(UnitPoint);
if (m_PreviewRenderer && m_PreviewRenderer->CanRender())
{
m_PreviewRenderer->Render(&gfxMf, m_Page);
}
::DeleteDC(hdc);
}
if (m_PreviewMetafile)
{
gfx.SetSmoothingMode(SmoothingModeAntiAlias);
PaintBackground(gfx, &virtualPage);
//Matrix matrix(1, 0, 0, 1, (float) - m_posOffset.x, (float) - m_posOffset.y);
m_RenderContext->SetDefaultViewMatrix(&matrix);
gfx.ResetTransform();
gfx.DrawImage(m_PreviewMetafile, virtualPage);
}
}
break;
public static extern bool StretchBlt(HDC hdcDest, int xDest, int yDest, int cxDest, int cyDest, HDC hdcSrc, int xSrc, int ySrc, int cxSrc, int cySrc, uint nCmd);
public unsafe static extern BOOL EnumEnhMetaFile(
HDC hdc,
HENHMETAFILE hmf,
Enhmfenumproc proc,
IntPtr param,
RECT *lpRect);
public static extern bool TextOut(HDC hdc, int x, int y, string stText, int cch);
public unsafe static partial BOOL SetViewportOrgEx(HDC hdc, int x, int y, Point *lppt);
public void ReleaseHDC(HDC hdc)
{
SetStatus(NativeMethods.GdipReleaseDC(nativeGraphics, hdc));
}
public static extern BKMODE SetBkMode(HDC hdc, BKMODE mode);
public static GraphicsPlus FromHDC(HDC hdc,
HANDLE hdevice)
{
return new GraphicsPlus(hdc, hdevice);
}
public static partial BOOL EndPath(HDC hdc);
