handling keyboard input in the message handler
Author
im really confused with this problem
the problem is
how do i check for keyboard input in the message handler?
like what are the scan codes and such?
one other thing
does anyone knoe a good way of checkin where the mouse is clicking?(example- how to check if the mouse clicks in a box?)
thanx
In Win32 or DirectInput?
I will assume you''re using Win32.
When a key is pressed, a WM_CHAR message is sent.
It''s character is stored in wParam.
Also, a WM_KEYDOWN is sent.
The characters stored in wParam are raw, ie they have no other properties. Eg is the user press Ctrl while pressing e, it will not be E but just e.
case WM_KEYDOWN:
switch((char)wParam)
{
case VK_UP:
break;
}
WM_KEYUP works the same way.
Mouse messages are:
WM_LBUTTONDOWN
WM_RBUTTONDOWN
WM_LBUTTONUP
WM_RBUTTONUP
WM_LBUTTONDBLCLK
WM_RBUTTONDBLCLK
When you need to test for Double-clicks:
wcl.style = CS_DBLCKS;
I will assume you''re using Win32.
When a key is pressed, a WM_CHAR message is sent.
It''s character is stored in wParam.
Also, a WM_KEYDOWN is sent.
The characters stored in wParam are raw, ie they have no other properties. Eg is the user press Ctrl while pressing e, it will not be E but just e.
case WM_KEYDOWN:
switch((char)wParam)
{
case VK_UP:
break;
}
WM_KEYUP works the same way.
Mouse messages are:
WM_LBUTTONDOWN
WM_RBUTTONDOWN
WM_LBUTTONUP
WM_RBUTTONUP
WM_LBUTTONDBLCLK
WM_RBUTTONDBLCLK
When you need to test for Double-clicks:
wcl.style = CS_DBLCKS;
And the coordinates of the mouse click when the message is sent is stored in the the LOWORD(lParam) and HIWORD(lParam) which are the X,Y coordinates.
Author
thanx Darkor
but i didnt get this part:
case WM_KEYDOWN:
switch((char)wParam)
{
case VK_UP:
break;
}
y is WM_KEYDOWN being used the VK_UP is also used?
can i do this with wParam:
switch(wParam)
{
case ''n'':
break;
case ''s'':
break;
etc
}
but i didnt get this part:
case WM_KEYDOWN:
switch((char)wParam)
{
case VK_UP:
break;
}
y is WM_KEYDOWN being used the VK_UP is also used?
can i do this with wParam:
switch(wParam)
{
case ''n'':
break;
case ''s'':
break;
etc
}
case WM_KEYDOWN:
switch((char)wParam)
{
case VK_UP:
//Up key is being pressed
break;
case VK_SPACE:
//space key is being pressed
break;
}
These are VK_ codes and are not the messages.
I dont think so, you''d have to cast it.
Because wParam is of type WPARAM.
switch((char)wParam)
{
case VK_UP:
//Up key is being pressed
break;
case VK_SPACE:
//space key is being pressed
break;
}
These are VK_ codes and are not the messages.
I dont think so, you''d have to cast it.
Because wParam is of type WPARAM.
Author
ic
then how would i check to see what letter is being pressed?
sorry to be annoying u with these questions
then how would i check to see what letter is being pressed?
sorry to be annoying u with these questions
No I dond''t mind your questions.
I ran into that trouble a few months back and...
I havn''t found a solution except to use DirectInput.
Maybe you could use WM_CHAR.
The VK codes only support the keys other than characters, I don''t know why.
Using DirectInput is actually easier, are you creating a game or just a Win32 app?
I ran into that trouble a few months back and...
I havn''t found a solution except to use DirectInput.
Maybe you could use WM_CHAR.
The VK codes only support the keys other than characters, I don''t know why.
Using DirectInput is actually easier, are you creating a game or just a Win32 app?
Author
i cant get my Dev C++ to wotk with Directx 
im tryin to make a simple game without directx or anything just win32
im tryin to make a simple game without directx or anything just win32
That would be kinda hard duncha think?
But anyway,
case WM_CHAR:
switch((char)wParam)
{
case ''c'':
break;
}
This would definitely work but it won''t test for enter keys and the like.
But anyway,
case WM_CHAR:
switch((char)wParam)
{
case ''c'':
break;
}
This would definitely work but it won''t test for enter keys and the like.
This topic is closed to new replies.
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