public static Bitmap PrintWindow(IntPtr hwnd, ref ImageCaptureInfo info, bool full = false, bool useCrop = false, float scalingValueFloat = 1.0f)
{
try
{
Rectangle rc;
DLLImportStuff.GetClientRect(hwnd, out rc);
Bitmap ret = new Bitmap(1, 1);
if (rc.Width < 0)
{
return(ret);
}
IntPtr hdcwnd = DLLImportStuff.GetDC(hwnd);
IntPtr hdc = DLLImportStuff.CreateCompatibleDC(hdcwnd);
rc.Width = (int)(rc.Width * scalingValueFloat);
rc.Height = (int)(rc.Height * scalingValueFloat);
if (useCrop)
{
//Change size according to selected crop
rc.Width = (int)(info.crop_coordinate_right - info.crop_coordinate_left);
rc.Height = (int)(info.crop_coordinate_bottom - info.crop_coordinate_top);
}
//Compute crop coordinates and width/ height based on resoution
ImageCapture.SizeAdjustedCropAndOffset(rc.Width, rc.Height, ref info);
float cropOffsetX = info.actual_offset_x;
float cropOffsetY = info.actual_offset_y;
if (full)
{
info.actual_offset_x = 0;
info.actual_offset_y = 0;
info.actual_crop_size_x = 2 * info.center_of_frame_x;
info.actual_crop_size_y = 2 * info.center_of_frame_y;
}
if (useCrop)
{
//Adjust for crop offset
info.center_of_frame_x += info.crop_coordinate_left;
info.center_of_frame_y += info.crop_coordinate_top;
}
IntPtr hbmp = DLLImportStuff.CreateCompatibleBitmap(hdcwnd, (int)info.actual_crop_size_x, (int)info.actual_crop_size_y);
DLLImportStuff.SelectObject(hdc, hbmp);
DLLImportStuff.BitBlt(hdc, 0, 0, (int)info.actual_crop_size_x, (int)info.actual_crop_size_y, hdcwnd, (int)(info.center_of_frame_x + info.actual_offset_x - info.actual_crop_size_x / 2),
(int)(info.center_of_frame_y + info.actual_offset_y - info.actual_crop_size_y / 2), DLLImportStuff.TernaryRasterOperations.SRCCOPY);
info.actual_offset_x = cropOffsetX;
info.actual_offset_y = cropOffsetY;
ret = (Bitmap)Image.FromHbitmap(hbmp).Clone();
DLLImportStuff.DeleteObject(hbmp);
DLLImportStuff.ReleaseDC(hwnd, hdcwnd);
DLLImportStuff.DeleteDC(hdc);
return(ResizeImage(ret, info.captureSizeX, info.captureSizeY));
}
catch (System.Runtime.InteropServices.ExternalException ex)
{
return(new Bitmap(10, 10));
}
}
private Bitmap CaptureImageFullPreview(ref ImageCaptureInfo imageCaptureInfo, bool useCrop = false)
{
Bitmap b = new Bitmap(1, 1);
//Full screen capture
if (processCaptureIndex < 0)
{
Screen selected_screen = Screen.AllScreens[-processCaptureIndex - 1];
Rectangle screenRect = selected_screen.Bounds;
screenRect.Width = (int)(screenRect.Width * scalingValueFloat);
screenRect.Height = (int)(screenRect.Height * scalingValueFloat);
Point screenCenter = new Point((int)(screenRect.Width / 2.0f), (int)(screenRect.Height / 2.0f));
if (useCrop)
{
//Change size according to selected crop
screenRect.Width = (int)(imageCaptureInfo.crop_coordinate_right - imageCaptureInfo.crop_coordinate_left);
screenRect.Height = (int)(imageCaptureInfo.crop_coordinate_bottom - imageCaptureInfo.crop_coordinate_top);
}
//Compute crop coordinates and width/ height based on resoution
ImageCapture.SizeAdjustedCropAndOffset(screenRect.Width, screenRect.Height, ref imageCaptureInfo);
imageCaptureInfo.actual_crop_size_x = 2 * imageCaptureInfo.center_of_frame_x;
imageCaptureInfo.actual_crop_size_y = 2 * imageCaptureInfo.center_of_frame_y;
if (useCrop)
{
//Adjust for crop offset
imageCaptureInfo.center_of_frame_x += imageCaptureInfo.crop_coordinate_left;
imageCaptureInfo.center_of_frame_y += imageCaptureInfo.crop_coordinate_top;
}
//Adjust for selected screen offset
imageCaptureInfo.center_of_frame_x += selected_screen.Bounds.X;
imageCaptureInfo.center_of_frame_y += selected_screen.Bounds.Y;
imageCaptureInfo.actual_offset_x = 0;
imageCaptureInfo.actual_offset_y = 0;
b = ImageCapture.CaptureFromDisplay(ref imageCaptureInfo);
imageCaptureInfo.actual_offset_x = cropOffsetX;
imageCaptureInfo.actual_offset_y = cropOffsetY;
}
else
{
IntPtr handle = new IntPtr(0);
if (processCaptureIndex >= processList.Length)
{
return(b);
}
if (processCaptureIndex != -1)
{
handle = processList[processCaptureIndex].MainWindowHandle;
}
//Capture from specific process
processList[processCaptureIndex].Refresh();
if ((int)handle == 0)
{
return(b);
}
b = ImageCapture.PrintWindow(handle, ref imageCaptureInfo, full: true, useCrop: useCrop, scalingValueFloat: scalingValueFloat);
}
return(b);
}
