public static IntPtr CreateRectRgn(int x1, int y1, int x2, int y2)
{
IntPtr hRgn = System.Internal.HandleCollector.Add(IntCreateRectRgn(x1, y1, x2, y2), CommonHandles.GDI);
DbgUtil.AssertWin32(hRgn != IntPtr.Zero, "IntCreateRectRgn([x1={0}, y1={1}, x2={2}, y2={3}]) failed.", x1, y1, x2, y2);
return(hRgn);
}
public static IntPtr ExtCreatePen(int fnStyle, int dwWidth, IntNativeMethods.LOGBRUSH lplb, int dwStyleCount, int[] lpStyle)
{
IntPtr hPen = System.Internal.HandleCollector.Add(IntExtCreatePen(fnStyle, dwWidth, lplb, dwStyleCount, lpStyle), IntSafeNativeMethods.CommonHandles.GDI);
DbgUtil.AssertWin32(hPen != IntPtr.Zero, "IntExtCreatePen(style={0}, width={1}, brush={2}, styleCount={3}, styles={4}) failed.", fnStyle, dwWidth, lplb, dwStyleCount, lpStyle);
return(hPen);
}
public static IntPtr CreatePen(int fnStyle, int nWidth, int crColor)
{
IntPtr hPen = System.Internal.HandleCollector.Add(IntCreatePen(fnStyle, nWidth, crColor), IntSafeNativeMethods.CommonHandles.GDI);
DbgUtil.AssertWin32(hPen != IntPtr.Zero, "IntCreatePen(style={0}, width={1}, color=[{2}]) failed.", fnStyle, nWidth, crColor);
return(hPen);
}
public static IntPtr CreateSolidBrush(int crColor)
{
IntPtr hBrush = System.Internal.HandleCollector.Add(IntCreateSolidBrush(crColor), IntSafeNativeMethods.CommonHandles.GDI);
DbgUtil.AssertWin32(hBrush != IntPtr.Zero, "IntCreateSolidBrush(color={0}) failed.", crColor);
return(hBrush);
}
public static bool DeleteHDC(HandleRef hDC)
{
System.Internal.HandleCollector.Remove((IntPtr)hDC, IntSafeNativeMethods.CommonHandles.HDC);
bool retVal = IntDeleteDC(hDC);
DbgUtil.AssertWin32(retVal, "DeleteHDC([hdc=0x{0:X8}]) failed.", hDC.Handle);
return(retVal);
}
public static int GetTextExtentPoint32(HandleRef hDC, string text, [In, Out] IntNativeMethods.SIZE size)
{
int byteCount = text.Length;
int retVal = GetTextExtentPoint32W(hDC, text, text.Length, size);
DbgUtil.AssertWin32(retVal != 0, "GetTextExtentPoint32(hdc=[0x{0:X8}], text=[{1}], size=[{2}] failed.", hDC.Handle, text, size);
return(retVal);
}
public static IntPtr GetCurrentObject(HandleRef hDC, int uObjectType)
{
IntPtr hGdiObj = IntGetCurrentObject(hDC, uObjectType);
// If the selected object is a region the return value is HGI_ERROR on failure.
DbgUtil.AssertWin32(hGdiObj != IntPtr.Zero, "GetObject(hdc=[0x{0:X8}], type=[{1}]) failed.", hDC, uObjectType);
return(hGdiObj);
}
public static bool DeleteObject(HandleRef hObject)
{
System.Internal.HandleCollector.Remove((IntPtr)hObject, IntSafeNativeMethods.CommonHandles.GDI);
bool retVal = IntDeleteObject(hObject);
DbgUtil.AssertWin32(retVal, "DeleteObject(hObj=[0x{0:X8}]) failed.", hObject.Handle);
return(retVal);
}
public static bool Arc(
HandleRef hDC,
int nLeftRect, // x-coord of rectangle's upper-left corner
int nTopRect, // y-coord of rectangle's upper-left corner
int nRightRect, // x-coord of rectangle's lower-right corner
int nBottomRect, // y-coord of rectangle's lower-right corner
int nXStartArc, // x-coord of first radial ending point
int nYStartArc, // y-coord of first radial ending point
int nXEndArc, // x-coord of second radial ending point
int nYEndArc // y-coord of second radial ending point
)
{
bool retVal = IntArc(hDC, nLeftRect, nTopRect, nRightRect, nBottomRect, nXStartArc, nYStartArc, nXEndArc, nYEndArc);
DbgUtil.AssertWin32(retVal, "Arc(hdc=[0x{0:X8}], ...) failed.", hDC.Handle);
return(retVal);
}
public static int GetTextMetrics(HandleRef hDC, ref IntNativeMethods.TEXTMETRIC lptm)
{
int retVal;
if (Marshal.SystemDefaultCharSize == 1)
{
// ANSI
IntNativeMethods.TEXTMETRICA lptmA = new IntNativeMethods.TEXTMETRICA();
retVal = IntUnsafeNativeMethods.GetTextMetricsA(hDC, ref lptmA);
lptm.tmHeight = lptmA.tmHeight;
lptm.tmAscent = lptmA.tmAscent;
lptm.tmDescent = lptmA.tmDescent;
lptm.tmInternalLeading = lptmA.tmInternalLeading;
lptm.tmExternalLeading = lptmA.tmExternalLeading;
lptm.tmAveCharWidth = lptmA.tmAveCharWidth;
lptm.tmMaxCharWidth = lptmA.tmMaxCharWidth;
lptm.tmWeight = lptmA.tmWeight;
lptm.tmOverhang = lptmA.tmOverhang;
lptm.tmDigitizedAspectX = lptmA.tmDigitizedAspectX;
lptm.tmDigitizedAspectY = lptmA.tmDigitizedAspectY;
lptm.tmFirstChar = (char)lptmA.tmFirstChar;
lptm.tmLastChar = (char)lptmA.tmLastChar;
lptm.tmDefaultChar = (char)lptmA.tmDefaultChar;
lptm.tmBreakChar = (char)lptmA.tmBreakChar;
lptm.tmItalic = lptmA.tmItalic;
lptm.tmUnderlined = lptmA.tmUnderlined;
lptm.tmStruckOut = lptmA.tmStruckOut;
lptm.tmPitchAndFamily = lptmA.tmPitchAndFamily;
lptm.tmCharSet = lptmA.tmCharSet;
}
else
{
// Unicode
retVal = IntUnsafeNativeMethods.GetTextMetricsW(hDC, ref lptm);
}
DbgUtil.AssertWin32(retVal != 0, "GetTextMetrics(hdc=[0x{0:X8}], [out TEXTMETRIC] failed.", hDC.Handle);
return(retVal);
}
public static int GetTextExtentPoint32(HandleRef hDC, string text, [In, Out] IntNativeMethods.SIZE size)
{
int retVal;
int byteCount = text.Length;
if (Marshal.SystemDefaultCharSize == 1)
{
// Convert Unicode string to ANSI.
byteCount = IntUnsafeNativeMethods.WideCharToMultiByte(IntNativeMethods.CP_ACP, 0, text, text.Length, null, 0, IntPtr.Zero, IntPtr.Zero);
byte[] textBytes = new byte[byteCount];
IntUnsafeNativeMethods.WideCharToMultiByte(IntNativeMethods.CP_ACP, 0, text, text.Length, textBytes, textBytes.Length, IntPtr.Zero, IntPtr.Zero);
// Security: Windows 95/98/Me: This value may not exceed 8192.
byteCount = Math.Min(text.Length, IntNativeMethods.MaxTextLengthInWin9x);
retVal = GetTextExtentPoint32A(hDC, textBytes, byteCount, size);
}
else
{
retVal = GetTextExtentPoint32W(hDC, text, text.Length, size);
}
DbgUtil.AssertWin32(retVal != 0, "GetTextExtentPoint32(hdc=[0x{0:X8}], text=[{1}], size=[{2}] failed.", hDC.Handle, text, size);
return(retVal);
}
public static IntNativeMethods.RegionFlags GetRgnBox(HandleRef hRgn, [In, Out] ref IntNativeMethods.RECT clipRect)
{
IntNativeMethods.RegionFlags result = IntGetRgnBox(hRgn, ref clipRect);
DbgUtil.AssertWin32(result != IntNativeMethods.RegionFlags.ERROR, "GetRgnBox([hRegion=0x{0:X8}], [out rect]) failed.", hRgn.Handle);
return(result);
}
public static IntNativeMethods.RegionFlags SelectClipRgn(HandleRef hDC, HandleRef hRgn)
{
IntNativeMethods.RegionFlags result = IntSelectClipRgn(hDC, hRgn);
DbgUtil.AssertWin32(result != IntNativeMethods.RegionFlags.ERROR, "SelectClipRgn([hdc=0x{0:X8}], [hRegion=0x{1:X8}]) failed.", hDC.Handle, hRgn.Handle);
return(result);
}
public static int SetGraphicsMode(HandleRef hDC, int iMode)
{
iMode = IntSetGraphicsMode(hDC, iMode);
DbgUtil.AssertWin32(iMode != 0, "SetGraphicsMode([hdc=0x{0:X8}], [GM_ADVANCED]) failed.", hDC.Handle);
return(iMode);
}
