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kbhit( ) problem

Posted on 2004-04-14
Medium Priority
Last Modified: 2012-05-04
theres problem with kbhit() function. my program takes input from user (from keyboard) and specifies which button he has pressed...but due to the getch the program terminates if any key is pressed..the message i get later is that there was an illegal operation and hence terminated.
can someguys help me out..
Question by:mythgops
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LVL 13

Expert Comment

ID: 10822456
Can you please post some lines of code and the exact error messages.

Author Comment

ID: 10822822

friends & experts:
can anyone tell me which all libraries do i need to work on windows programming..i came to know that c++ has no GUI i have to go thru the win32 api tutorials..
i have just downloaded <windows.h> and <commdlg.h> header do i need to download more header files for win32 api to work on my turbo c++?

Author Comment

ID: 10822871
friends & experts & Steh:

i wrote the following code:

#include <windows.h>

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow)
    MessageBox(NULL, "Goodbye, cruel world!", "Note", MB_OK);
    return 0;

i got the error message as:
type mismatch in redeclaration in pascal winmain..parameter hinstance..hprevinsatnce..lpcmdline is never used
hope u could help

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LVL 13

Accepted Solution

SteH earned 375 total points
ID: 10822970
Windows has a GUI facility: MFC.

but since you mention Turbo C++ you are using an older version of a borland compiler. Depending on the version of it you have either OWL or TurboVision as GUI framework.

windows.h includes several other files internally depending on defines done before. Maybe some of them are missing which define/redefine HINSTANCE or LPSTR. Normally those files should all come with the compiler. Perhaps you have to look where they are hidden. Is there a legal place for downloading them not in connection with a compiler?
LVL 11

Expert Comment

ID: 10823087
try changing the calling convention to PASCAL.

#include <windows.h>

int PASCAL WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
    LPSTR lpCmdLine, int nCmdShow)
LVL 13

Expert Comment

ID: 10823264
WINAPI should translate into PASCAL if available. VC++6 and later don't support PASCAL but WINAPI is changing linking options to achieve the same in those cases. So I would suggest to leave WINAPI as it is but try to see how WINAPI is defined in your case (do you hae the correct header file in your include search path?).
LVL 30

Expert Comment

ID: 10823370
If you're creating a WIN32 console application, you don't need <windows.h>

If you're trying to convert a program for Turbo C++ to VC++, the best thing to do is trying making a WIN32 console application.
It shouldn't require that much modifications.

Exactly what type of application are you trying to build, and what compiler are you using?

Author Comment

ID: 10825408
am using turboc++ complier..need to start making games..
for that i need a response from key board..which unfortunately is not happening..some required header files seems to be missing.

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