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WinAPI: GetWindowThreadProcessId - 获取指定窗口的进程 ID 或线程 ID//声明:GetWindowThreadProcessId( hWnd: HWND; {指定窗口句柄} lpdwProcessId: Pointer = nil {返回进程 ID 的指针}): DWORD; {返回线程 ID}
//举例:unit Unit1;
interface
uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, Grids;
type TForm1 = class(TForm) procedure FormCreate(Sender: TObject); end;
var Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.FormCreate(Sender: TObject);var c: Cardinal;begin GetWindowThreadProcessId(Handle, @c); ShowMessage(IntToStr(c)); {2792; 随机的} {在本例中相同于 GetCurrentProcessID 的结果} c := GetCurrentProcessID; ShowMessage(IntToStr(c)); {2792}
c := GetWindowThreadProcessId(Handle, nil); ShowMessage(IntToStr(c)); {2748} {在本例中相同于 GetCurrentThreadID 的结果} c := GetCurrentThreadID; ShowMessage(IntToStr(c)); {2748}end;
end.
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