Thread: `INPUT' undeclared (first use in this function)|

Hello, I'm trying to do some DX inputs but I have this error:
C:\beep\beep\main.c|11|error: `INPUT' undeclared (first use in this function)|

What can I do to solve this?

at Defines.h I have both setInputDX and releaseInputDX prototypes.

Code:

#include <stdio.h>
#include <stdlib.h>
#include <process.h>
#include <windows.h>
#include <winuser.h>
#include "Bip.h"
#include "Defines.h"
#define _WIN32_WINNT 0x0500

static void setInputDX(WORD inputCodeSet) {
        INPUT inp[1]; //ERROR AT THIS LINE
	memset(inp, 0, sizeof(INPUT));
	inp[0].type = INPUT_KEYBOARD;
	inp[0].ki.wScan = inputCodeSet;
	inp[0].ki.dwExtraInfo = 0;
	SendInput(1, inp, sizeof(INPUT));
}

static void releaseInputDX(WORD inputCodeRelease) {}

int main() {
   
    setInputDX(RCONTROL);
    releaseInputDX(RCONTROL);
    
    return -1;
}

Change this:

Code:

#define _WIN32_WINNT 0x0500

To this:

Code:

#define _WIN32_WINNT 0x0501

Originally Posted by hk_mp5kpdw

Where is the INPUT type declared? In one of those headers?

INPUT is declared at WinUser.h

between lines 5279 and 5292

Code:

#define INPUT_MOUSE     0
#define INPUT_KEYBOARD  1
#define INPUT_HARDWARE  2

typedef struct tagINPUT {
    DWORD   type;

    union
    {
        MOUSEINPUT      mi;
        KEYBDINPUT      ki;
        HARDWAREINPUT   hi;
    };
} INPUT, *PINPUT, FAR* LPINPUT;

I changed to #define _WIN32_WINNT 0x0501 but unfortunately I got the same error above:

Code:

C:\beep\beep\main.c|8|warning: "_WIN32_WINNT" redefined|
C:\CodeBlocks\MinGW\bin\..\lib\gcc\mingw32\3.4.5\..\..\..\..\include\windef.h|20|warning: this is the location of the previous definition|
C:\beep\beep\main.c||In function `setInputDX':|
C:\beep\beep\main.c|11|error: `INPUT' undeclared (first use in this function)|
C:\beep\beep\main.c|11|error: (Each undeclared identifier is reported only once|
C:\beep\beep\main.c|11|error: for each function it appears in.)|
C:\beep\beep\main.c|11|error: syntax error before "inp"|
C:\beep\beep\main.c|12|error: `inp' undeclared (first use in this function)|
C:\beep\beep\main.c|13|error: `INPUT_KEYBOARD' undeclared (first use in this function)|
C:\beep\beep\main.c|16|warning: implicit declaration of function `SendInput'|
||=== Build finished: 6 errors, 3 warnings ===|

I can confirm that in VSExpress it compiles correctly. I don't yet see why gcc won't compile it.

Originally Posted by tabstop

I can confirm that in VSExpress it compiles correctly. I don't yet see why gcc won't compile it.

Yeah.. I made this test right now too. VSEx compiles perfectly. I have no idea what's going on with GCC.

Sometimes it's the easy things...

Define winntwhatever to be 0x500 before including windows.h.

Originally Posted by tabstop

Sometimes it's the easy things...

Define winntwhatever to be 0x500 before including windows.h.

[100.0%] Compiling: main.c
Process terminated with status 0 (0 minutes, 0 seconds)
0 errors, 0 warnings


thanks IN ADVANCE tabstop!!!