Get problem with FindWindow(). Pls help! [modified]

aluisdo

Pls help me solve it... I got this error when I compile with VS 2005, pls help me.

------ Build started: Project: VLTKLib, Configuration: Debug Win32 ------
Compiling...
pHandle.cpp
Linking...
pHandle.obj : error LNK2028: unresolved token (0A000299) "extern "C" struct HWND__ * __stdcall FindWindowW(wchar_t const *,wchar_t const *)" (?FindWindowW@@$$J18YGPAUHWND__@@PB_W0@Z) referenced in function "public: void __thiscall VLTKLib::pHandle::setHandle(char *,char *)" (?setHandle@pHandle@VLTKLib@@$$FQAEXPAD0@Z)
pHandle.obj : error LNK2028: unresolved token (0A00029B) "extern "C" unsigned long __stdcall GetWindowThreadProcessId(struct HWND__ *,unsigned long *)" (?GetWindowThreadProcessId@@$$J18YGKPAUHWND__@@PAK@Z) referenced in function "public: void __thiscall VLTKLib::pHandle::setHandle(struct HWND__ *)" (?setHandle@pHandle@VLTKLib@@$$FQAEXPAUHWND__@@@Z)
pHandle.obj : error LNK2019: unresolved external symbol "extern "C" unsigned long __stdcall GetWindowThreadProcessId(struct HWND__ *,unsigned long *)" (?GetWindowThreadProcessId@@$$J18YGKPAUHWND__@@PAK@Z) referenced in function "public: void __thiscall VLTKLib::pHandle::setHandle(struct HWND__ *)" (?setHandle@pHandle@VLTKLib@@$$FQAEXPAUHWND__@@@Z)
pHandle.obj : error LNK2019: unresolved external symbol "extern "C" struct HWND__ * __stdcall FindWindowW(wchar_t const *,wchar_t const *)" (?FindWindowW@@$$J18YGPAUHWND__@@PB_W0@Z) referenced in function "public: void __thiscall VLTKLib::pHandle::setHandle(char *,char *)" (?setHandle@pHandle@VLTKLib@@$$FQAEXPAD0@Z)
d:\workspace\VLTK\Debug\VLTKLib.dll : fatal error LNK1120: 4 unresolved externals
Build log was saved at "file://d:\workspace\VLTK\VLTKLib\Debug\BuildLog.htm"
VLTKLib - 5 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

My class: pHandle.h

#pragma once

#include #include #include namespace VLTKLib
{
public class pHandle
{
private:
HANDLE hProcess;

public:
    pHandle(void);
    pHandle(HWND curWin);
    pHandle(char \*winClass, char \*winTitle);
    ~pHandle(void);

    void setHandle(HWND curWin);
    void setHandle(char \*winClass, char \*winTitle);
    void closeHandle();
    
    long ReadInt(LPBYTE lpAddress); //Read 4 bytes
    short ReadWord(LPBYTE lpAddress); //Read 2 bytes
    char ReadChar(LPBYTE lpAddress); //Read 1 byte
    char \*ReadString(LPBYTE lpAddress, int szChar);
};

}

prasad_som

Have you used /NODEFAULTLIB linker option , by accident ?

Prasad MS MVP - VC++

Hamid Taebi

Did you import User32.lib?

WhiteSky

aluisdo

How to import User32.lib? Tks for your help.

aluisdo

How to check it? I did not change any thing. Tks for your help.

prasad_som

Check Project setting-->configuration properties-->Input-->Ignore All default lib. set it to No if, if it is yes.

Prasad MS MVP - VC++

myshketer

HWND curWin = FindWindow((LPCWSTR)winClass,(LPCWSTR)winTitle) - error !!! FindWindowW(wchar_t const *,wchar_t const *) - postfiks 'W' mean that the funktion use wchar_t instead char. And you can convert char* to wchar_t* by using _TEXT("") macros. And look here -> pHandle::setHandle(NULL) - wich of your function will be use?

Hamid Taebi

Right click on your project and select property on the solution window go to linker of tree list on the left panel open it and select input and enter this file at Additional Dependencies.

WhiteSky

aluisdo

Tks for your reply. I converted all char * to wchar_t const as same as definetion of function, but I still got that errors.

void pHandle::setHandle(wchar_t const *winClass, wchar_t const *winTitle)
{
HWND curWin = FindWindow(winClass,winTitle);
setHandle(curWin);
}

Tks for your help

aluisdo

Tks, It solved.

Hamid Taebi

You're welcome.;)

WhiteSky