delphi 中如何用keybd_event 实现对其他应用程序的模拟键盘输入(例如:对WORD,文本等)。
解决方案 »
- 关于函数参数指针的使用
- XMLDocument中如何在指定位置插入子节点啊?
- 如何画出白色的底色,上面有规律的排列着图标? 就像WINDOWS文件夹用“缩略图”或“图标”形式查看一样?
- realaudio和Xaudio.dll 的问题!高手请进。
- 如何做一个类似于windows 2000 登陆系统的程序?
- 大家来一起讨论一下,在工业控制系统中,常通过扩展串口连接多个外设,该怎么做呢?
- wsasend返回错误。
- idtcp控件接收另一端的数据
- 在DBGride里我怎样把一个int型的字段显示成 "0000123"的类型?
- 怎样判断float类型的小数点后的位数?例如:123.45,那么位数为2.
- 窗体的free,create 和getkind方法分别是什么作用?这些方法在什么事件发生时调用?谢谢
- 50分求教:空字符查询问题~~
标题:模拟系统按键
说明:支持组合键;不支持部分系统热键(如:Ctrl+Shift+Del...)
设计:Zswang
日期:2002-01-24
支持:[email protected]
//*)///////Begin Source
procedure SendKey(const mKey: Word; mShiftState: TShiftState;
mCount: Integer = 1); { 模拟系统按键;mCount指定按键次数 }
const
cExtended: set of Byte = [VK_UP, VK_DOWN, VK_LEFT, VK_RIGHT, VK_HOME,
VK_END, VK_PRIOR, VK_NEXT, VK_INSERT, VK_DELETE]; procedure pKeyboardEvent(mKey, mScanCode: Byte; mFlags: Longint);
var
vKeyboardMsg: TMsg;
begin
keybd_event(mKey, mScanCode, mFlags, 0);
while PeekMessage(vKeyboardMsg, 0, WM_KEYFIRST, WM_KEYLAST, PM_REMOVE) do
begin
TranslateMessage(vKeyboardMsg);
DispatchMessage(vKeyboardMsg);
end;
end; { pKeyboardEvent } procedure pSendKeyDown(mKey: Word; mGenUpMsg: Boolean);
var
vScanCode: Byte;
vNumState: Boolean;
vKeyBoardState: TKeyboardState;
begin
if (mKey = VK_NUMLOCK) then begin
vNumState := ByteBool(GetKeyState(VK_NUMLOCK) and 1);
GetKeyBoardState(vKeyBoardState);
if vNumState then
vKeyBoardState[VK_NUMLOCK] := (vKeyBoardState[VK_NUMLOCK] and not 1)
else vKeyBoardState[VK_NUMLOCK] := (vKeyBoardState[VK_NUMLOCK] or 1);
SetKeyBoardState(vKeyBoardState);
Exit;
end; vScanCode := Lo(MapVirtualKey(mKey, 0));
if (mKey in cExtended) then begin
pKeyboardEvent(mKey, vScanCode, KEYEVENTF_EXTENDEDKEY);
if mGenUpMsg then
pKeyboardEvent(mKey, vScanCode,
KEYEVENTF_EXTENDEDKEY or KEYEVENTF_KEYUP)
end else begin
pKeyboardEvent(mKey, vScanCode, 0);
if mGenUpMsg then pKeyboardEvent(mKey, vScanCode, KEYEVENTF_KEYUP);
end;
end; { pSendKeyDown } procedure pSendKeyUp(mKey: Word);
var
vScanCode: Byte;
begin
vScanCode := Lo(MapVirtualKey(mKey, 0));
if mKey in cExtended then
pKeyboardEvent(mKey, vScanCode, KEYEVENTF_EXTENDEDKEY and KEYEVENTF_KEYUP)
else pKeyboardEvent(mKey, vScanCode, KEYEVENTF_KEYUP);
end; { pSendKeyUp }var
I: Integer;
begin
for I := 1 to mCount do begin
if ssShift in mShiftState then pSendKeyDown(VK_SHIFT, False);
if ssCtrl in mShiftState then pSendKeyDown(VK_CONTROL, False);
if ssAlt in mShiftState then pSendKeyDown(VK_MENU, False);
pSendKeyDown(mKey, True);
if ssShift in mShiftState then pSendKeyUp(VK_SHIFT);
if ssCtrl in mShiftState then pSendKeyUp(VK_CONTROL);
if ssAlt in mShiftState then pSendKeyUp(VK_MENU);
end;
end; { SendKey }
///////End Source///////Begin Demo
procedure TForm1.Button1Click(Sender: TObject);
begin
SendKey(VK_F4, [ssAlt]);
end;
///////End Demo