请问，怎么给一个应用程序发送键盘消息
请教，如何给一个应用程序发送键盘消息
请教，vb里的sendkeys在vc里怎么样实现，另外目标程序不是在桌面显示状态。
------解决方案--------------------
没做过这种程序，我想大致思路是用FINDWINDOW获取目标窗口的HWND后,在SENDMESSAGE
WM_KEYDOWN消息，WPARAM为虚拟键，不过LPARAM估计要自己按位合成了，给段MSDN:
wParam
Specifies the virtual-key code of the nonsystem key.
lParam
Specifies the repeat count, scan code, extended-key flag, context code, previous key-state flag, and transition-state flag, as shown in the following table.
0-15
Specifies the repeat count for the current message. The value is the number of times the keystroke is autorepeated as a result of the user holding down the key. If the keystroke is held long enough, multiple messages are sent. However, the repeat count is not cumulative.
16-23
Specifies the scan code. The value depends on the OEM.
24
Specifies whether the key is an extended key, such as the right-hand ALT and CTRL keys that appear on an enhanced 101- or 102-key keyboard. The value is 1 if it is an extended key; otherwise, it is 0.
25-28
Reserved; do not use.
29
Specifies the context code. The value is always 0 for a WM_KEYDOWN message.
30
Specifies the previous key state. The value is 1 if the key is down before the message is sent, or it is zero if the key is up.
31
Specifies the transition state. The value is always zero for a WM_KEYDOWN message
请教，vb里的sendkeys在vc里怎么样实现，另外目标程序不是在桌面显示状态。
------解决方案--------------------
没做过这种程序，我想大致思路是用FINDWINDOW获取目标窗口的HWND后,在SENDMESSAGE
WM_KEYDOWN消息，WPARAM为虚拟键，不过LPARAM估计要自己按位合成了，给段MSDN:
wParam
Specifies the virtual-key code of the nonsystem key.
lParam
Specifies the repeat count, scan code, extended-key flag, context code, previous key-state flag, and transition-state flag, as shown in the following table.
0-15
Specifies the repeat count for the current message. The value is the number of times the keystroke is autorepeated as a result of the user holding down the key. If the keystroke is held long enough, multiple messages are sent. However, the repeat count is not cumulative.
16-23
Specifies the scan code. The value depends on the OEM.
24
Specifies whether the key is an extended key, such as the right-hand ALT and CTRL keys that appear on an enhanced 101- or 102-key keyboard. The value is 1 if it is an extended key; otherwise, it is 0.
25-28
Reserved; do not use.
29
Specifies the context code. The value is always 0 for a WM_KEYDOWN message.
30
Specifies the previous key state. The value is 1 if the key is down before the message is sent, or it is zero if the key is up.
31
Specifies the transition state. The value is always zero for a WM_KEYDOWN message