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Removed unneeded scroll code. Fixed a potential null-pointer bug in CaptureRectangle. Fixed a bug with GDI captures being black by counting the pixels and if there is a difference taking the screen shot instead.

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git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@2238 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
This commit is contained in:
RKrom 2012-11-05 16:05:07 +00:00
parent fd46837c8d
commit 35b16e8fd9
4 changed files with 48 additions and 110 deletions
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108
GreenshotPlugin/Core/WindowsHelper.cs
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@ -1111,114 +1111,6 @@ namespace GreenshotPlugin.Core {
return returnRegion;
}
/// <summary>
/// PrintWindow but with VScroll loop
/// </summary>
/// <returns>Image with all the scroll contents</returns>
public Image PrintWithVScroll() {
SCROLLINFO scrollinfo = new SCROLLINFO();
scrollinfo.cbSize = Marshal.SizeOf( scrollinfo );
scrollinfo.fMask = (int) ScrollInfoMask.SIF_ALL;
User32.GetScrollInfo(Handle, (int) ScrollBarDirection.SB_VERT, ref scrollinfo );
LOG.DebugFormat("nMax {0}", scrollinfo.nMax);
LOG.DebugFormat("nMin {0}", scrollinfo.nMin);
LOG.DebugFormat("nPage {0}", scrollinfo.nPage);
LOG.DebugFormat("nPos {0}", scrollinfo.nPos);
LOG.DebugFormat("nTrackPos {0}", scrollinfo.nTrackPos);
// WindowStyleFlags style = WindowStyle;
// LOG.InfoFormat("before: {0}", style);
// style = style.Remove(WindowStyleFlags.WS_HSCROLL);
// WindowStyle = style;
// if (!User32.SetWindowPos(Handle, IntPtr.Zero, 0,0,0,0, WindowPos.SWP_NOMOVE | WindowPos.SWP_NOSIZE | WindowPos.SWP_NOZORDER | WindowPos.SWP_FRAMECHANGED| WindowPos.SWP_DRAWFRAME | WindowPos.SWP_NOACTIVATE)) {
// Exception e = new Win32Exception();
// LOG.Error("error with SetWindowPos", e);
// }
// style = WindowStyle;
// LOG.InfoFormat("before: {0}", style);
// style = style.Remove(WindowStyleFlags.WS_VSCROLL);
// WindowStyle = style;
// LOG.InfoFormat("After: {0}", style);
// if (!User32.SetWindowPos(Handle, IntPtr.Zero, 0,0,0,0, WindowPos.SWP_NOMOVE | WindowPos.SWP_NOSIZE | WindowPos.SWP_NOZORDER | WindowPos.SWP_FRAMECHANGED| WindowPos.SWP_DRAWFRAME | WindowPos.SWP_NOACTIVATE)) {
// Exception e = new Win32Exception();
// LOG.Error("error with SetWindowPos", e);
// }
Rectangle viewableRectangle = ClientRectangle;
// As we work with bitmap coordinates, recalculate the location
viewableRectangle.Offset(-WindowRectangle.X, -WindowRectangle.Y);
int width = viewableRectangle.Width;
int height = viewableRectangle.Height * (scrollinfo.nMax / scrollinfo.nPage);
int pageSkip = scrollinfo.nPage;
if (width * height == 0) {
LOG.Error("No window content!!");
return null;
}
Bitmap returnBitmap = new Bitmap(width, height, PixelFormat.Format24bppRgb);
using (Graphics graphicsTarget = Graphics.FromImage(returnBitmap)) {
int location = 0;
int y = 0;
do {
VScroll(location);
Thread.Sleep(200);
Rectangle destination = new Rectangle(0, y, viewableRectangle.Width, viewableRectangle.Height);
using (Image printedWindow = PrintWindow()) {
if (printedWindow != null) {
graphicsTarget.DrawImage(printedWindow, destination, viewableRectangle, GraphicsUnit.Pixel);
graphicsTarget.Flush();
y += viewableRectangle.Height;
}
}
location += pageSkip;
//if (location < scrollinfo.nMax && location > scrollinfo.nMax - scrollinfo.nPage) {
// location = scrollinfo.nMax - scrollinfo.nPage;
//}
} while (location < scrollinfo.nMax);
}
VScroll(scrollinfo.nPos);
return returnBitmap;
}
/// <summary>
/// Does the window have a HScrollbar?
/// </summary>
/// <returns>true if a HScrollbar is available</returns>
public bool HasHScroll() {
return WindowStyle.Has(WindowStyleFlags.WS_HSCROLL);
}
/// <summary>
/// Does the window have a VScrollbar?
/// </summary>
/// <returns>true if a VScrollbar is available</returns>
public bool HasVScroll() {
return WindowStyle.Has(WindowStyleFlags.WS_VSCROLL);
}
/// <summary>
/// Scroll the window to the hpos location
/// </summary>
/// <param name="hpos"></param>
public void HScroll(int hpos) {
User32.SetScrollPos(Handle, Orientation.Horizontal, hpos, true);
User32.PostMessage(Handle, (int)WindowsMessages.WM_HSCROLL, (int)ScrollbarCommand.SB_THUMBPOSITION + (hpos<<16), 0);
}
/// <summary>
/// Scroll the window to the vpos location
/// </summary>
/// <param name="vpos"></param>
public void VScroll(int vpos) {
User32.SetScrollPos(Handle, Orientation.Vertical, vpos, true);
int ptrWparam = (int)ScrollbarCommand.SB_THUMBTRACK + (vpos << 16);
int ptrLparam = 0;
User32.SendMessage(Handle, (int)WindowsMessages.WM_VSCROLL, ptrWparam, ptrLparam);
}
private bool CanFreezeOrUnfreeze(string titleOrProcessname) {
if (string.IsNullOrEmpty(titleOrProcessname)) {
return false;