Mega Code Archive
Include the mouse-cursor in a screen shot
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// 1. Get the handle to the current mouse-cursor and its position
function GetCursorInfo2: TCursorInfo;
var
hWindow: HWND;
pt: TPoint;
pIconInfo: TIconInfo;
dwThreadID, dwCurrentThreadID: DWORD;
begin
Result.hCursor := 0;
ZeroMemory(@Result, SizeOf(Result));
// Find out which window owns the cursor
if GetCursorPos(pt) then
begin
Result.ptScreenPos := pt;
hWindow := WindowFromPoint(pt);
if IsWindow(hWindow) then
begin
// Get the thread ID for the cursor owner.
dwThreadID := GetWindowThreadProcessId(hWindow, nil);
// Get the thread ID for the current thread
dwCurrentThreadID := GetCurrentThreadId;
// If the cursor owner is not us then we must attach to
// the other thread in so that we can use GetCursor() to
// return the correct hCursor
if (dwCurrentThreadID <> dwThreadID) then
begin
if AttachThreadInput(dwCurrentThreadID, dwThreadID, True) then
begin
// Get the handle to the cursor
Result.hCursor := GetCursor;
AttachThreadInput(dwCurrentThreadID, dwThreadID, False);
end;
end
else
begin
Result.hCursor := GetCursor;
end;
end;
end;
end;
// 2. Capture the screen
function CaptureScreen: TBitmap;
var
DC: HDC;
ABitmap: TBitmap;
MyCursor: TIcon;
CursorInfo: TCursorInfo;
IconInfo: TIconInfo;
begin
// Capture the Desktop screen
DC := GetDC(GetDesktopWindow);
ABitmap := TBitmap.Create;
try
ABitmap.Width := GetDeviceCaps(DC, HORZRES);
ABitmap.Height := GetDeviceCaps(DC, VERTRES);
// BitBlt on our bitmap
BitBlt(ABitmap.Canvas.Handle,
0,
0,
ABitmap.Width,
ABitmap.Height,
DC,
0,
0,
SRCCOPY);
// Create temp. Icon
MyCursor := TIcon.Create;
try
// Retrieve Cursor info
CursorInfo := GetCursorInfo2;
if CursorInfo.hCursor <> 0 then
begin
MyCursor.Handle := CursorInfo.hCursor;
// Get Hotspot information
GetIconInfo(CursorInfo.hCursor, IconInfo);
// Draw the Cursor on our bitmap
ABitmap.Canvas.Draw(CursorInfo.ptScreenPos.X - IconInfo.xHotspot,
CursorInfo.ptScreenPos.Y - IconInfo.yHotspot, MyCursor);
end;
finally
// Clean up
MyCursor.ReleaseHandle;
MyCursor.Free;
end;
finally
ReleaseDC(GetDesktopWindow, DC);
end;
Result := ABitmap;
end;
// Example: Capture the screen and include the cursor.
// Show the Screenshot in Image1
procedure TForm1.Button1Click(Sender: TObject);
begin
Image1.Picture.Assign(CaptureScreen);
end;
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