add bitmap string func

bitmap/goBitmap.h

@@ -108,6 +108,19 @@ MMBitmapRef bitmap_open(char *path, uint16_t ttype){
 
 }
 
+MMBitmapRef bitmap_from_string(const char *str){
+	size_t len = strlen(str);
+
+	MMBitmapRef bitmap;
+	MMBMPStringError err;
+
+	if ((bitmap = createMMBitmapFromString((unsigned char*)str, len, &err)) == NULL) {
+		return NULL;
+	}
+
+	return bitmap;
+}
+
 char *bitmap_save(MMBitmapRef bitmap, char *path, uint16_t type){
 	if (saveMMBitmapToFile(bitmap, path, (MMImageType) type) != 0) {
 		return "Could not save image to file.";

robotgo.go

@@ -55,7 +55,7 @@ import (
 )
 
 const (
-	version string = "v0.46.0.400, Pyrenees Mountains!"
+	version string = "v0.46.0.401, Pyrenees Mountains!"
 )
 
 // GetVersion get version
@@ -638,6 +638,14 @@ func OpenBitmap(args ...interface{}) C.MMBitmapRef {
 	// defer C.free(unsafe.Pointer(path))
 }
 
+// BitmapStr bitmap from string
+func BitmapStr(str string) C.MMBitmapRef {
+	cs := C.CString(str)
+	bit := C.bitmap_from_string(cs)
+	defer C.free(unsafe.Pointer(cs))
+	return bit
+}
+
 // SaveBitmap save the bitmap
 func SaveBitmap(args ...interface{}) string {
 	var mtype C.uint16_t