同时捕获多个按键

[QsLrEn]

在捕获1个按键只要在keydown事件中根据key值来判断就可以了，但是现在要捕获Alt+1,或者多个按键同时按下的消息，应该怎么判断捕获

[i_love_pc]

void __fastcall TForm1::FormKeyDown(TObject *Sender, WORD &Key,
      TShiftState Shift)
{
        //组合键可以通过Shift参数来判断
}
//---------------------------------------------------------------------------

[i_love_pc]

TShiftState indicates the state of the Alt, Ctrl, and Shift keys and the mouse buttons.

Unit

Classes

typedef Set<Classes__1, ssShift, ssDouble> TShiftState;

Description

The TShiftState type is used by key-event and mouse-event handlers to determine the state of the Alt, Ctrl, and Shift keys and the state of the mouse buttons when the event occurs. It is a set of flags that indicate the following:

Value Meaning

ssShift The Shift key is held down.
ssAlt The Alt key is held down.
ssCtrl The Ctrl key is held down.
ssLeft The left mouse button is held down.
ssRight The right mouse button is held down.
ssMiddle The middle mouse button is held down.
ssDouble The mouse was double-clicked.

[QsLrEn]

void __fastcall TForm1::FormKeyDown(TObject *Sender, WORD &Key,
TShiftState Shift)
{
//组合键可以通过Shift参数来判断
}
我就是这个Shift参数不知道怎么写呀

[i_love_pc]

void __fastcall TForm1::FormKeyDown(TObject *Sender, WORD &Key,
      TShiftState Shift)
{
        //组合键可以通过Shift参数来判断 
        TShiftState tss;
        if(Shift== tss<<ssAlt && Key==65)
        {
                ShowMessage("Alt+A");
        }
}
//---------------------------------------------------------------------------

[QsLrEn]

谢谢 不过没有分送

[我不懂电脑]

Shift判断组合键的。

[wmfbravo]

void __fastcall TForm1::FormKeyDown(TObject *Sender, WORD &Key,
TShiftState Shift)
{
//组合键可以通过Shift参数来判断
if(Shift.Contains(ssAlt) && Key==65)
{
ShowMessage("Alt+A");
}
}
//---------------------------------------------------------------------------

[11113fsfasdfasdfa]

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