public static HBITMAP CreateDIBSectionChecked
(
HDC hdc,
BITMAPINFO pbmi,
out IntPtr ppvBits
)
{
HBITMAP res = CreateDIBSection(hdc, ref pbmi, 0, out ppvBits, IntPtr.Zero, 0);
if (res == IntPtr.Zero)
{
throw new InvalidOperationException($"{nameof(CreateDIBSection)} failed. Width: {pbmi.bmiHeader.biWidth}, Height: {pbmi.bmiHeader.biHeight}.");
}
return(res);
}
/// <summary>Initializes a new instance of the <see cref="CREDUI_INFO"/> struct.</summary>
/// <param name="hwndOwner">Specifies the handle to the parent window of the dialog box.</param>
/// <param name="caption">The string containing the title for the dialog box.</param>
/// <param name="message">The string containing a brief message to display in the dialog box.</param>
public CREDUI_INFO(HWND hwndOwner, string caption, string message)
{
cbSize = Marshal.SizeOf(typeof(CREDUI_INFO));
hwndParent = hwndOwner;
if (caption?.Length > CREDUI_MAX_CAPTION_LENGTH)
{
throw new ArgumentOutOfRangeException(nameof(caption), $"The caption may not be longer than {CREDUI_MAX_CAPTION_LENGTH}.");
}
pszCaptionText = caption ?? string.Empty;
if (message?.Length > CREDUI_MAX_MESSAGE_LENGTH)
{
throw new ArgumentOutOfRangeException(nameof(message), $"The message may not be longer than {CREDUI_MAX_MESSAGE_LENGTH}.");
}
pszMessageText = message;
hbmBanner = HBITMAP.NULL;
}
public static extern int GetObject(HBITMAP hbmp, int cb, ref BITMAP bm);
public static extern HBRUSH CreatePatternBrush(HBITMAP hbmp);
public static extern GpStatus GdipCreateHBITMAPFromBitmap(GpBitmap bitmap,
out HBITMAP hbmReturn,
int background);
GdipCreateHBITMAPFromBitmap(GpBitmap bitmap,
out HBITMAP hbmReturn,
int background);
public GpStatus GetHBITMAP(
Color colorBackground,
out HBITMAP hbmReturn
)
{
return SetStatus(NativeMethods.GdipCreateHBITMAPFromBitmap(
(GpBitmap)(IntPtr)nativeImage,
out hbmReturn,
colorBackground.ToArgb()));
}
public BitmapPlus FromHBITMAP(
HBITMAP hbm,
IntPtr hpal
)
{
return new BitmapPlus(hbm, hpal);
}
/*
public Bitmap(
BITMAPINFO* gdiBitmapInfo,
VOID* gdiBitmapData
)
{
GpBitmap bitmap = new GpBitmap();
lastResult = NativeMethods.GdipCreateBitmapFromGdiDib(gdiBitmapInfo,
gdiBitmapData,
out bitmap);
SetNativeImage((GpImage)(IntPtr)bitmap);
}
*/
public BitmapPlus(
HBITMAP hbm,
IntPtr hpal
)
{
GpBitmap bitmap = new GpBitmap();
lastResult = NativeMethods.GdipCreateBitmapFromHBITMAP(hbm, hpal, out bitmap);
SetNativeImage((GpImage)(IntPtr)bitmap);
}
public static extern int GetDIBits(HDC hdc, HBITMAP hbmp, int uStartScan, int cScanLines, IntPtr lpvBits, ref BITMAPINFO lpbi, DIBColorMode uUsage);
public HRESULT GetThumbnail(uint cx, out HBITMAP phbmp, out WTS_ALPHATYPE pdwAlpha)
{
// Retrieve thumbnails of the placeholders on demand by delegating to the thumbnail of the source items.
try
{
using var thumbnailProviderSource = ComReleaserFactory.Create(_itemSrc.BindToHandler <IThumbnailProvider>(default, BHID.BHID_ThumbnailHandler.Guid()));
public HRESULT SetBitmap(HBITMAP hBitmap)
{
return(((delegate * unmanaged <IBanneredBar *, HBITMAP, int>)(lpVtbl[5]))((IBanneredBar *)Unsafe.AsPointer(ref this), hBitmap));
}
public HRESULT Replace2(int i, HBITMAP hbmImage, HBITMAP hbmMask, IUnknown *punk, [NativeTypeName("DWORD")] uint dwFlags)
{
return(((delegate * unmanaged <IImageList2 *, int, HBITMAP, HBITMAP, IUnknown *, uint, int>)(lpVtbl[42]))((IImageList2 *)Unsafe.AsPointer(ref this), i, hbmImage, hbmMask, punk, dwFlags));
}
private unsafe Bitmap GetCaptureBitmap(HWND hWnd)
{
Bitmap bitmap = null;
HWND zero = new HWND(0);
HDC desktopDC = new HDC(IntPtr.Zero);
HDC memoryDC = new HDC(IntPtr.Zero);
try
{
var result = PInvoke.GetClientRect(hWnd, out RECT rect);
if (!result)
{
throw new NullReferenceException($"指定したハンドルのウィンドウ({hWnd})を発見することができませんでした。");
}
POINT point = new POINT();
var mapResult = PInvoke.MapWindowPoints(hWnd, zero, &point, 2);
if (mapResult == 0)
{
throw new NullReferenceException($"指定したハンドルのウィンドウ({hWnd})の座標空間の変換に失敗しました。");
}
rect.left = point.x;
rect.top = point.y;
rect.right = rect.right + point.x;
rect.bottom = rect.bottom + point.y;
var tempRect = rect;
desktopDC = PInvoke.GetWindowDC(zero); // デスクトップの HDC を取得
var header = new BITMAPINFOHEADER()
{
biSize = (uint)Marshal.SizeOf(typeof(BITMAPINFOHEADER)),
biWidth = tempRect.right - rect.left,
biHeight = tempRect.bottom - rect.top,
biPlanes = 1,
biCompression = 0, // BitmapCompressionMode.BI_RGB = 0
biBitCount = 24,
};
var info = new BITMAPINFO
{
bmiHeader = header,
};
void **bits = null;
HBITMAP hBitmap = PInvoke.CreateDIBSection(desktopDC, &info, DIB_USAGE.DIB_RGB_COLORS, bits, new HANDLE(IntPtr.Zero), 0);
memoryDC = PInvoke.CreateCompatibleDC(desktopDC);
var phBitMap = PInvoke.SelectObject(memoryDC, new HGDIOBJ(hBitmap));
PInvoke.BitBlt(memoryDC, 0, 0, header.biWidth, header.biHeight, desktopDC, rect.left, rect.top, ROP_CODE.SRCCOPY);
PInvoke.SelectObject(memoryDC, phBitMap);
bitmap = Bitmap.FromHbitmap(hBitmap, IntPtr.Zero);
}
finally
{
if (desktopDC.Value != IntPtr.Zero)
{
PInvoke.ReleaseDC(zero, desktopDC);
}
if (memoryDC.Value != IntPtr.Zero)
{
PInvoke.ReleaseDC(hWnd, memoryDC);
}
}
return(bitmap);
}
