|
Hello World program using Win32APISimple "Hello World" ProgamHere is a very simple Win32 program using Win32API directly. List : hello.c
#include <windows.h>
int WINAPI
WinMain (HINSTANCE hInstance, HINSTANCE hPrevInst, LPTSTR lpCmdLine, int nShowCmd)
{
MessageBoxW (NULL, L"Hello World!", L"hello", MB_OK | MB_ICONINFORMATION);
return 0;
}
To build Win32 GUI application, -mwindows switch is added in the link. If -mwindows is not added, -mconsole is automatically added. If -mconsole is added for building GUI application, the window of command prompt is appeared at the same time as GUI application when you invoke the program on Windows. Bulding hello.exe $ i686-pc-mingw32-gcc hello.c -o hello.exe -mwindows $ file hello.exe hello.exe: PE32 executable for MS Windows (GUI) Intel 80386 32-bit $ ./hello.exe &
figure : hello.exe executed on Wine If you want to check in detail how the gcc builds your program, try to add -v option to gcc command. Bulding hello.exe with -v option $ i686-pc-mingw32-gcc hello.c -o hello.exe -mwindows -v Using built-in specs. Target: i686-pc-mingw32 Configured with: ../configure --prefix=/usr --bindir=/usr/bin --includedir=/usr /include --libdir=/usr/lib64 --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --build=x86_64-redhat-linux-gnu --host=x86_64-redhat-linux -gnu --target=i686-pc-mingw32 --with-gnu-as --with-gnu-ld --verbose --without-n ewlib --disable-multilib --with-system-zlib --disable-nls --without-included-ge ttext --disable-win32-registry --enable-version-specific-runtime-libs --with-sy sroot=/usr/i686-pc-mingw32/sys-root --enable-languages=c,c++ Thread model: win32 gcc version 4.3.2 (GCC) COLLECT_GCC_OPTIONS='-o' 'hello.exe' '-mwindows' '-v' '-mtune=generic' /usr/libexec/gcc/i686-pc-mingw32/4.3.2/cc1 -quiet -v hello.c -quiet -dumpbase hello.c -mwindows -mtune=generic -auxbase hello -version -o /tmp/ccmjS7aI.s ignoring nonexistent directory "/usr/i686-pc-mingw32/sys-root/usr/local/include " ignoring nonexistent directory "/usr/lib64/gcc/i686-pc-mingw32/4.3.2/../../../. ./i686-pc-mingw32/include" #include "..." search starts here: #include <...> search starts here: /usr/lib64/gcc/i686-pc-mingw32/4.3.2/include /usr/lib64/gcc/i686-pc-mingw32/4.3.2/include-fixed /usr/i686-pc-mingw32/sys-root/mingw/include End of search list. GNU C (GCC) version 4.3.2 (i686-pc-mingw32) compiled by GNU C version 4.3.2 20081105 (Red Hat 4.3.2-7), GMP version 4.2.2, MPFR version 2.3.2. GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: fed0246486d20b4653fc64976dff8eaa COLLECT_GCC_OPTIONS='-o' 'hello.exe' '-mwindows' '-v' '-mtune=generic' /usr/lib64/gcc/i686-pc-mingw32/4.3.2/../../../../i686-pc-mingw32/bin/as -v -o /tmp/ccIbBD0E.o /tmp/ccmjS7aI.s GNU assembler version 2.19 (i686-pc-mingw32) using BFD version (GNU Binutils) 2 .19 COMPILER_PATH=/usr/libexec/gcc/i686-pc-mingw32/4.3.2/:/usr/libexec/gcc/i686-pc- mingw32/4.3.2/:/usr/libexec/gcc/i686-pc-mingw32/:/usr/lib64/gcc/i686-pc-mingw32 /4.3.2/:/usr/lib64/gcc/i686-pc-mingw32/:/usr/lib64/gcc/i686-pc-mingw32/4.3.2/.. /../../../i686-pc-mingw32/bin/ LIBRARY_PATH=/usr/lib64/gcc/i686-pc-mingw32/4.3.2/:/usr/lib64/gcc/i686-pc-mingw 32/4.3.2/../../../../i686-pc-mingw32/lib/:/usr/i686-pc-mingw32/sys-root/mingw/l ib/ COLLECT_GCC_OPTIONS='-o' 'hello.exe' '-mwindows' '-v' '-mtune=generic' /usr/libexec/gcc/i686-pc-mingw32/4.3.2/collect2 --sysroot=/usr/i686-pc-mingw32 /sys-root --subsystem windows -Bdynamic -o hello.exe /usr/i686-pc-mingw32/sys-r oot/mingw/lib/crt2.o /usr/lib64/gcc/i686-pc-mingw32/4.3.2/crtbegin.o -L/usr/lib 64/gcc/i686-pc-mingw32/4.3.2 -L/usr/lib64/gcc/i686-pc-mingw32/4.3.2/../../../.. /i686-pc-mingw32/lib -L/usr/i686-pc-mingw32/sys-root/mingw/lib /tmp/ccIbBD0E.o -lmingw32 -lgcc -lmoldname -lmingwex -lmsvcrt -lgdi32 -lcomdlg32 -luser32 -lker nel32 -ladvapi32 -lshell32 -lmingw32 -lgcc -lmoldname -lmingwex -lmsvcrt /usr/l ib64/gcc/i686-pc-mingw32/4.3.2/crtend.o Related Links |
