home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
OS/2 Professional
/
OS2PRO194.ISO
/
os2
/
prgramer
/
cenvi
/
winmsg.lib
< prev
next >
Wrap
Text File
|
1994-03-08
|
2KB
|
59 lines
// WinMsg.lib - Functions for WinPostMsg(), WinSendMsg() and related
// ver.1
//
//**** WinSendMsg(): Send a message to a window handle
// SYNTAX: int WinSendMsg(int WindowHandle,int MessageID,int Param1,int Param2)
// WHERE: WindowHandle: any PM window handle
// MessageID; unique message identifier - often a WM_xxx message
// Param1, Param2: input parameters with meaning depending on MessageID
// RETURN: Returns value returned by window's message function
//
//
//**** WinPostMsg(): Post a message to a window handle
// SYNTAX: bool WinPostMsg(int WindowHandle,int MessageID,int Param1,int Param2
// [,bool MustPostFromPM])
// WHERE: WindowHandle: any PM window handle
// MessageID; unique message identifier - often a WM_xxx message
// Param1, Param2: input parameters with meaning depending on MessageID
// MustPostFromPM: If False then can post from CEnvi without CEnvi2PM; default False
// RETURN: boolean TRUE if able to post, else boolean FALSE
//
//
//**** MakeLongFromShorts(): combine two shorts (16-bit) into a long (32-bit)
// SYNTAX: int MakeLongFromShorts(LowShort,HighShort)
// WHERE: LowShort, HighShort: two 16-bit values
// RETURN: Return integer (low | high << 16)
//
//
//**** MakeShortFromBytes(): combine two bytes (8-bit) into a Short (16-bit)
// SYNTAX: int MakeShortFromBytes(LowByte,HighByte)
// WHERE: LowByte, HighByte: two 8-bit values
// RETURN: Return integer (low | high << 8)
//
//
WinSendMsg(pHwnd,pMsg,pParam1,pParam2)
{
#define ORD_WIN32SENDMSG 920
return PMDynamicLink("PMWIN",ORD_WIN32SENDMSG,BIT32,CDECL,pHwnd,pMsg,pParam1,pParam2);
}
WinPostMsg(pHwnd,pMsg,pParam1,pParam2,pMustPostFromPM)
{
#define ORD_WIN32POSTMSG 919
return ( va_arg() < 5 || !pMustPostFromPM )
? DynamicLink("PMWIN",ORD_WIN32POSTMSG,BIT32,CDECL,pHwnd,pMsg,pParam1,pParam2)
: PMDynamicLink("PMWIN",ORD_WIN32POSTMSG,BIT32,CDECL,pHwnd,pMsg,pParam1,pParam2);
}
MakeLongFromShorts(pLo,pHi)
{
return ( (pLo & 0xFFFF) | ((pHi & 0xFFFF) << 16) );
}
MakeShortFromBytes(pLo,pHi)
{
return ( (pLo & 0xFF) | ((pHi & 0xFF) << 8) );
}