英文:
cgo - How to convert go string to LPCWSTR
问题
package mypackage
/*
#cgo LDFLAGS: -luser32
#include <windows.h>
*/
import "C"
import "unsafe"
func MessageBox(m string) {
cm := C.CString(m)
defer C.free(unsafe.Pointer(cm))
C.MessageBoxA(C.HWND(nil), (*C.CHAR)(cm), C.LPCSTR(nil), 0) // It display a message.
}
import "syscall"
func MessageBoxU(m string) {
C.MessageBoxW(C.HWND(nil), (*C.WCHAR)(unsafe.Pointer(syscall.StringToUTF16Ptr(m))), C.LPCWSTR(nil), 0)
}
英文:
I would like to use some of windows api, but I have no idea how to start. Is there any tutorial for it?
Anyway I have a simple code. Can you please help me to get this correct?
package mypackage
/*
#cgo LDFLAGS: -luser32
#include <windows.h>
*/
import "C"
import "unsafe"
func MessageBox(m string) {
cm := C.CString(s)
defer C.free(unsafe.Pointer(cm))
C.MessageBoxA(C.HWND(nil), (*C.CHAR)(cm), C.LPCSTR(nil), 0) // It display a message.
}
Edit: I can deal with char* but still do not know what with wchar_t*.
import "syscall"
func MessageBoxU(m string) {
C.MessageBoxW(C.HWND(nil), (*C.WCHAR)(unsafe.Pointer(syscall.StringToUTF16Ptr(m))), C.LPCWSTR(nil), 0)
}
Please let me know if this is not go idiom.
答案1
得分: 5
以下是两个将Windows API封装为Go语言的项目：
一个使用示例：
func setWidgetText(hwnd HWND, text string) error {
if TRUE != go-winapi.SendMessage(hwnd, WM_SETTEXT, 0, uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(text)))) {
return newError("WM_SETTEXT failed")
}
return nil
}
英文:
The following are two projects which wrap the Windows API to Go:
A usage example:
func setWidgetText(hwnd HWND, text string) error {
if TRUE != go-winapi.SendMessage(hwnd, WM_SETTEXT, 0, uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(text)))) {
return newError("WM_SETTEXT failed")
}
return nil
}
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