WM_DEVMODECHANGE=$001B;WM_ACTIVATEAPP=$001C;WM_FONTCHANGE=$001D;WM_TIMECHANGE=$001E;WM_CANCELMODE=$001F; WM_SETCURSOR= $0020;WM_MOUSEACTIVATE= $0021;WM_CHILDACTIVATE= $0022;WM_QUEUESYNC= $0023; WM_GETMINMAXINFO= $0024; WM_PAINTICON= $0026; WM_ICONERASEBKGND= $0027;WM_NEXTDLGCTL= $0...
WM_SIZE = $0005; WM_ACTIVATE = $0006; WM_SETFOCUS = $0007; WM_KILLFOCUS = $0008; WM_ENABLE = $000A; WM_SETREDRAW = $000B; WM_SETTEXT = $000C; WM_GETTEXT = $000D; WM_GETTEXTLENGTH = $000E; WM_PAINT = $000F; WM_CLOSE = $0010; WM_QUERYENDSESSION = $0011; WM_QUIT =...
同样用户也可以定义自己的消息,用户自定义消息应从WM_USER开始。 自定义消息及消息处理句柄举例如下: const my_paint=Wm_user+1; type Tmypaint=record msgid:cardinal; msize:word; mcolor:longint; msgresult:longint; end; type Tmycontrol=class(TCustomControl) protected procedure change(var message:Tmypai...
ShowMessage(IntToStr(sizeof(WM_SIZE))); end; 1. 2. 3. 4. 结果等于1 --- 再来看Delphi定义的消息结构体: TWMSize = packed record Msg: Cardinal; SizeType: Longint; { SIZE_MAXIMIZED, SIZE_MINIMIZED, SIZE_RESTORED, SIZE_MAXHIDE, SIZE_MAXSHOW } Width: Word; Height: Word; Result: Longi...
WM_SIZE = $0005; 改变一个窗口的大小 WM_ACTIVATE = $0006; 一个窗口被激活或失去激活状态; WM_SETFOCUS = $0007; 获得焦点后 WM_KILLFOCUS = $0008; 失去焦点 WM_ENABLE = $000A; 改变enable状态 WM_SETREDRAW = $000B; 设置窗口是否能重画 WM_SETTEXT = $000C; 应用程序发送此消息来设置一个...
1 打开Delphi7集成开发环境,在默认工程的Form1窗体上放一个Label1控件,设置其autosize属性为:False。拖拽拉大控件。2 在Unit1.pas的interface区,定义一个消息常量,在TForm1类中私有方法,声明一个消息处理过程,代码如下:interfaceuses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,...
WM_KEYUP: // 监视键盘有键抬起消息 begin keys[wParam] := FALSE; // 如果是,设为FALSE result:=0; // 返回消息循环 end; WM_SIZE: // 监视窗口尺寸改变消息 begin ReSizeGLScene(LOWORD(lParam),HIWORD(lParam)); // 重置OpenGL窗口大小
WM_PAINT消息。 所以不需要创建一个线程或跳过任何其他的箍,你只需要安排关闭消息框的代码在这10秒后运行。一个简单的方法是在没有目标 HWND的情况下调用 SetTimer(),但是回调函数:procedure CloseMessageBox(AWnd: HWND; AMsg: UINT; AIDEvent: UINT_PTR; ATicks: DWORD); stdcall; var Wnd: HWND;...
String[255]是一个固定的256字节内存块,其中字符数据直接存储在该内存中。因此,无需序列化即可安全地...
Button1.Perform(WM_SYSCOMMAND,SC_SIZE OR 9,0); end; 很神奇吧,可见windows消息的强大,下面把WM_SYSCOMMAND消息命令整理一下: SC_CLOSE 关闭窗口 SC_HOTKEY Activate the window associated with the application-specified hot key. SC_HSCROLL Scroll horizontally. ...