Unresolved external symbols

blacpythoz

I jhad this code inside qt-creator

main.cpp

#include "windows.h"
#include <QCoreApplication>
int main(int argc, char *argv[])    
{
    QCoreApplication a(argc, argv);
    char file[]= "E:\\test.bmp";
    SystemParametersInfoA(SPI_SETDESKWALLPAPER, 0, &file, SPIF_UPDATEINIFILE |SPIF_SENDWININICHANGE);
    return a.exec();

}

testWallpaper.pro

QT += core
QT -= gui

CONFIG += c++11

TARGET = TestWallpaper
CONFIG += console
CONFIG -= app_bundle

TEMPLATE = app

SOURCES += main.cpp

# The following define makes your compiler emit warnings if you use
# any feature of Qt which as been marked deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

Codeblock Version

#include "windows.h"
int main(int argc, char *argv[])
{
    char *file="E:\\test.bmp";
   SystemParametersInfo(SPI_SETDESKWALLPAPER, 0, file, SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE);
}

The Code block version runs fine but whenever I tried to run from qt-creator I got the issue:

main.obj:-1: error: LNK2019: unresolved external symbol __imp_SystemParametersInfoA referenced in function main
debug\TestWallpaper.exe:-1: error: LNK1120: 1 unresolved externals

Why is this happenning ?? I am trying to set the desktop wallpaper.

Devopia53

@blacpythoz

Hi.

Which compiler version are you using? If it is an MSVC version, like this:

LIBS += User32.lib

blacpythoz

@Devopia53 said in Unresolved external symbols:

Which compiler version are you using? If it is an MSVC version, like this:

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