如何制作我实际的屏幕截图 window
How to make a screen shot of my actual window
我定义了一个 Tactionlist,其中包含对 show/hide 我的表单的所有操作。这可以是模态 (showmodal) 或非模态 (visible:=true)。我找到了一些代码来捕捉屏幕截图:
procedure GetScreenShot(shotType: TScreenShotType; var img: TJpegImage);
var
w,h: integer;
DC: HDC;
hWin: Cardinal;
r: TRect;
tmpBmp: TBitmap;
begin
hWin := 0;
case shotType of
sstActiveWindow:
begin //This is what I use
//only the active window
hWin := GetForegroundWindow;
dc := GetWindowDC(hWin);
GetWindowRect(hWin,r);
w := r.Right - r.Left;
h := r.Bottom - r.Top;
end; //sstActiveWindow
sstActiveClientArea:
begin
end; //sstActiveClientArea
sstPrimaryMonitor:
begin
end; //sstPrimaryMonitor
sstDesktop:
begin
end; //sstDesktop
else begin
Exit;
end; //case else
end; //case
//convert to jpg
tmpBmp := TBitmap.Create;
try
tmpBmp.Width := w;
tmpBmp.Height := h;
BitBlt(tmpBmp.Canvas.Handle,0,0,tmpBmp.Width,
tmpBmp.Height,DC,0,0,SRCCOPY);
img.Assign(tmpBmp);
finally
ReleaseDC(hWin,DC);
FreeAndNil(tmpBmp);
end; //try-finally
end;
我的"scan"套路如下:
for ACnt := 0 to GenActions.ActionCount - 1 do
begin
try
LogBook.ML(Format('%d. Aktion %s gestartet',[ACnt,quotedstr(GenActions.Actions[ACnt].Name)]));
if GenActions.Actions[ACnt].Tag > 0 then
begin // Action is ready for test
TAction(GenActions.Actions[ACnt]).checked:=true;
if GenActions.Actions[ACnt].Execute then
begin
LogBook.ML(Format('%d. Aktion %s erfolgreich ausgeführt',[ACnt,quotedstr(GenActions.Actions[ACnt].Name)]));
if SaveScreens then // var boolean
begin
img:=TJPEGImage.Create;
try
GetScreenShot(sstActiveWindow,img);
img.SaveToFile(IncludeTrailingBackslash(Optionen.PictPfad.Text)+inttostr(ACnt)+'.jpg');
finally
img.Free;
end;
end;
repeat
sleep(100);
Application.ProcessMessages;
until not DM_Gen.TestTimer.Enabled ; //for modal windows a timer sends modalresult:=mrcancel
end;
end
else
begin
LogBook.ML(Format('%d Aktion %s nicht getestet',[ACnt,quotedstr(GenActions.Actions[ACnt].Name)]));
end;
except
on E: Exception do
LogBook.ML(Format('%d. Aktion hat Fehler %s gemeldet',[ACnt,E.Message]));
end;
end;
finally
LogBook.ML('Testlauf beendet');
end;
当我 运行 这段代码时,我得到了主窗体的大约前 150 个操作,然后是一些其他窗体,如日志或浏览器或......几乎从来没有我想要的窗体。
我发现一些推荐使用 "findwindow" 的帖子。这是我的问题,我不知道 window 的确切标题,因为在所有 windows 中,标题在 onshow 事件中被修改以显示实际信息。
有什么想法可以捕捉到我实际打开的 window?
所以一个问题是了解我的行为是如何运作的。这里有两个典型的例子:
procedure TDM_Gen.VALstVisActExecute(Sender: TObject);
begin
if Sender is TAction then
begin // set some properties
end;
ListeVeranst_2.Visible:=VALstVisAct.Checked;
end;
procedure TDM_Gen.NewVAActExecute(Sender: TObject);
var
NewVA : TNewVeranstaltung;
begin
if Sender <> nil then
begin
if Sender is TButton then
begin //do something depending on who fired
end;
end;
try
NewVA:=TNewVeranstaltung.Create(nil);
case NewVA.ShowModal of
mrOk:
begin // e.g. refresh some lists
end;
mrCancel:
begin // clean up
end;
end;
finally
NewVA.Free;
end;
end;
window 的标题是在展会期间设置的:
caption:=Format('This is window %s %s',[Param1, Param2]);
您遇到的问题是由于 ShowModal
方法阻塞了调用。这意味着该调用之后的所有后续代码将在表单关闭后开始执行。
以下简化示例中的代码流:
MyAction.Execute;
CaptureScreen;
procedure TSomeForm.MyActionExecute(Sender: TObject);
var frm: TForm;
begin
frm := TForm.Create(nil);
try
frm.ShowModal; // this call blocks execution of subsequent code in this method until form is closed
finally
frm.Free;
end;
end;
将是 MyAction.Execute -> frm.ShowModal -> frm.Close -> frm.Free -> CaptureScreen
您必须从模态窗体中启动屏幕捕获才能捕获其屏幕。
我定义了一个 Tactionlist,其中包含对 show/hide 我的表单的所有操作。这可以是模态 (showmodal) 或非模态 (visible:=true)。我找到了一些代码来捕捉屏幕截图:
procedure GetScreenShot(shotType: TScreenShotType; var img: TJpegImage);
var
w,h: integer;
DC: HDC;
hWin: Cardinal;
r: TRect;
tmpBmp: TBitmap;
begin
hWin := 0;
case shotType of
sstActiveWindow:
begin //This is what I use
//only the active window
hWin := GetForegroundWindow;
dc := GetWindowDC(hWin);
GetWindowRect(hWin,r);
w := r.Right - r.Left;
h := r.Bottom - r.Top;
end; //sstActiveWindow
sstActiveClientArea:
begin
end; //sstActiveClientArea
sstPrimaryMonitor:
begin
end; //sstPrimaryMonitor
sstDesktop:
begin
end; //sstDesktop
else begin
Exit;
end; //case else
end; //case
//convert to jpg
tmpBmp := TBitmap.Create;
try
tmpBmp.Width := w;
tmpBmp.Height := h;
BitBlt(tmpBmp.Canvas.Handle,0,0,tmpBmp.Width,
tmpBmp.Height,DC,0,0,SRCCOPY);
img.Assign(tmpBmp);
finally
ReleaseDC(hWin,DC);
FreeAndNil(tmpBmp);
end; //try-finally
end;
我的"scan"套路如下:
for ACnt := 0 to GenActions.ActionCount - 1 do
begin
try
LogBook.ML(Format('%d. Aktion %s gestartet',[ACnt,quotedstr(GenActions.Actions[ACnt].Name)]));
if GenActions.Actions[ACnt].Tag > 0 then
begin // Action is ready for test
TAction(GenActions.Actions[ACnt]).checked:=true;
if GenActions.Actions[ACnt].Execute then
begin
LogBook.ML(Format('%d. Aktion %s erfolgreich ausgeführt',[ACnt,quotedstr(GenActions.Actions[ACnt].Name)]));
if SaveScreens then // var boolean
begin
img:=TJPEGImage.Create;
try
GetScreenShot(sstActiveWindow,img);
img.SaveToFile(IncludeTrailingBackslash(Optionen.PictPfad.Text)+inttostr(ACnt)+'.jpg');
finally
img.Free;
end;
end;
repeat
sleep(100);
Application.ProcessMessages;
until not DM_Gen.TestTimer.Enabled ; //for modal windows a timer sends modalresult:=mrcancel
end;
end
else
begin
LogBook.ML(Format('%d Aktion %s nicht getestet',[ACnt,quotedstr(GenActions.Actions[ACnt].Name)]));
end;
except
on E: Exception do
LogBook.ML(Format('%d. Aktion hat Fehler %s gemeldet',[ACnt,E.Message]));
end;
end;
finally
LogBook.ML('Testlauf beendet');
end;
当我 运行 这段代码时,我得到了主窗体的大约前 150 个操作,然后是一些其他窗体,如日志或浏览器或......几乎从来没有我想要的窗体。
我发现一些推荐使用 "findwindow" 的帖子。这是我的问题,我不知道 window 的确切标题,因为在所有 windows 中,标题在 onshow 事件中被修改以显示实际信息。
有什么想法可以捕捉到我实际打开的 window?
所以一个问题是了解我的行为是如何运作的。这里有两个典型的例子:
procedure TDM_Gen.VALstVisActExecute(Sender: TObject);
begin
if Sender is TAction then
begin // set some properties
end;
ListeVeranst_2.Visible:=VALstVisAct.Checked;
end;
procedure TDM_Gen.NewVAActExecute(Sender: TObject);
var
NewVA : TNewVeranstaltung;
begin
if Sender <> nil then
begin
if Sender is TButton then
begin //do something depending on who fired
end;
end;
try
NewVA:=TNewVeranstaltung.Create(nil);
case NewVA.ShowModal of
mrOk:
begin // e.g. refresh some lists
end;
mrCancel:
begin // clean up
end;
end;
finally
NewVA.Free;
end;
end;
window 的标题是在展会期间设置的:
caption:=Format('This is window %s %s',[Param1, Param2]);
您遇到的问题是由于 ShowModal
方法阻塞了调用。这意味着该调用之后的所有后续代码将在表单关闭后开始执行。
以下简化示例中的代码流:
MyAction.Execute;
CaptureScreen;
procedure TSomeForm.MyActionExecute(Sender: TObject);
var frm: TForm;
begin
frm := TForm.Create(nil);
try
frm.ShowModal; // this call blocks execution of subsequent code in this method until form is closed
finally
frm.Free;
end;
end;
将是 MyAction.Execute -> frm.ShowModal -> frm.Close -> frm.Free -> CaptureScreen
您必须从模态窗体中启动屏幕捕获才能捕获其屏幕。