public static SafeGDIHandle CreateDib(Rectangle bounds, IntPtr primaryHdc, SafeDeviceHandle memoryHdc)
{
var info = new BITMAPINFO();
info.biSize = Marshal.SizeOf(info);
info.biWidth = bounds.Width;
info.biHeight = -bounds.Height;
info.biPlanes = 1;
info.biBitCount = 32;
info.biCompression = 0; // BI_RGB
var dib = CreateDIBSection(primaryHdc, info, 0, IntPtr.Zero, IntPtr.Zero, 0);
SelectObject(memoryHdc, dib);
return(dib);
}
public static extern void GetThemeTextExtent(IntPtr hTheme, SafeDeviceHandle hdc, int iPartId, int iStateId,
string text, int iCharCount, int dwTextFlags, [In] ref RECT bounds, out RECT rect);
public static extern bool BitBlt(IntPtr hdc, int nXDest, int nYDest, int nWidth, int nHeight,
SafeDeviceHandle hdcSrc, int nXSrc, int nYSrc, uint dwRop);
public static extern void DrawThemeTextEx(IntPtr hTheme, SafeDeviceHandle hdc, int iPartId, int iStateId,
string text, int iCharCount, int dwFlags, ref RECT pRect, ref DTTOPTS pOptions);
public static extern IntPtr SelectObject(SafeDeviceHandle hDC, SafeGDIHandle hObject);