private void tipCapture()
{
RECT tR = new RECT();
GetWindowRect(_hTipWnd, ref tR);
Size sZ = new Size(tR.Right - tR.Left, tR.Bottom - tR.Top);
_cBgDc = new cStoreDc();
_cBgDc.Height = sZ.Height;
_cBgDc.Width = sZ.Width;
IntPtr pD = GetDesktopWindow();
IntPtr pH = GetDC(pD);
BitBlt(_cBgDc.Hdc, 0, 0, sZ.Width, sZ.Height, pH, tR.Left, tR.Top, 0xCC0020);
ReleaseDC(pD, pH);
}
private void drawGraphic(Rectangle rDmn, IntPtr hdc, string caption, string title, IntPtr parent)
{
RECT tR = new RECT();
GetWindowRect(_hTipWnd, ref tR);
// blit the capture, simulating transparency
BitBlt(hdc, 0, 0, rDmn.Width, rDmn.Height, _cBgDc.Hdc, 0, 0, 0xCC0020);
if (_bmGraphic != null)
{
cStoreDc cImage = new cStoreDc();
cStoreDc cDraw = new cStoreDc();
cImage.Height = _bmGraphic.Height;
cImage.Width = _bmGraphic.Width;
cDraw.Height = rDmn.Height;
cDraw.Width = rDmn.Width;
IntPtr hOld = SelectObject(cImage.Hdc, _bmGraphic.GetHbitmap());
// left side
StretchBlt(cDraw.Hdc, 0, 3, 3, (rDmn.Height - 6), cImage.Hdc, 0, 3, 3, (cImage.Height - 6), 0xCC0020);
// right side
StretchBlt(cDraw.Hdc, (rDmn.Width - 3), 3, 3, (rDmn.Height - 6), cImage.Hdc, (cImage.Width - 3), 3, 3, (cImage.Height - 6), 0xCC0020);
// top left corner
StretchBlt(cDraw.Hdc, 0, 0, 3, 3, cImage.Hdc, 0, 0, 3, 3, 0xCC0020);
// top
StretchBlt(cDraw.Hdc, 3, 0, (rDmn.Width - 3), 3, cImage.Hdc, 3, 0, (cImage.Width - 3), 3, 0xCC0020);
// bottom
StretchBlt(cDraw.Hdc, 3, (rDmn.Height - 3), (rDmn.Width - 3), 3, cImage.Hdc, 3, (cImage.Height - 3), (cImage.Width - 3), 3, 0xCC0020);
// bottom left corner
StretchBlt(cDraw.Hdc, 0, (rDmn.Height - 3), 3, 3, cImage.Hdc, 0, (cImage.Height - 3), 3, 3, 0xCC0020);
// center
StretchBlt(cDraw.Hdc, 3, 3, (rDmn.Width - 6), (rDmn.Height - 6), cImage.Hdc, 3, 3, (cImage.Width - 6), (cImage.Height - 6), 0xCC0020);
// draw to buffer
byte bt = (byte)(_fOpacity * 255);
alphaBlit(hdc, 0, 0, rDmn.Width, rDmn.Height, cDraw.Hdc, 0, 0, rDmn.Width, rDmn.Height, bt);
SelectObject(cImage.Hdc, hOld);
}
}