有办法,只是比较费劲。因为SendMessage只能发单个按键的消息,所以如果要发组合键的消息,就必须修改键盘缓冲区强迫使某一些键处于按下状态(可能描述不当!!!)。BYTE KeyStateArray[256];KeyStateArray[VK_SHIFT] = 0x80; //使SHIFT键处于按下状态
SetKeyboardState(KeyStateArray);SendMessage(hTargetWnd,WM_KEYDOWN,VK_TAB,0); //想窗口发送Shift + TAB 组合键消息KeyStateArray[VK_SHIFT] = 0x00; //恢复原来的键盘缓冲区
SetKeyboardState(KeyStateArray);
SetKeyboardState(KeyStateArray);SendMessage(hTargetWnd,WM_KEYDOWN,VK_TAB,0); //想窗口发送Shift + TAB 组合键消息KeyStateArray[VK_SHIFT] = 0x00; //恢复原来的键盘缓冲区
SetKeyboardState(KeyStateArray);
UnRegistHotKey()
API Function.
li_key_shift,li_key_tab :intger;
begin
li_key_shift := 16;
li_key_tab := 9;
keybd_event(li_key_shift, 0, 0, 0); //SHIFT按下
keybd_event(li_key_tab, 0, 0, 0); //TAB 按下
keybd_event(li_key_tab, 0, 2, 0); //TAB 释放
keybd_event(li_key_shift, 0, 2, 0); //SHIFT释放
end;
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_TAB, [ssShift]);
end;
///////End Demo
Perform(WM_NEXTDLGCTL, 0, -1); //建议