#define WS_VISIBLE 268435456
#define WS_CHILD 1073741824

#define SS_BITMAP 14
#define SS_NOTIFY 256
#define STM_SETIMAGE 370

external(INT, "CreateWindow", "CreateWindowExA", "User32.dll" );
external(INT, "LoadImage", "LoadImageA", "User32.dll");


int static;
int image1=LoadImage(0, "C:\Users\Home\Desktop\222333\1.bmp", 0, 20, 20, 16);//20х20 обе и 24 цвета
int image2=LoadImage(0, "C:\Users\Home\Desktop\222333\2.bmp", 0, 20, 20, 16);

createdialog(0);
showdialog(0, "Диалог",100, 100, 300, 150, 1, 1);

loop()sleep(1);

function getmessage(0, WM_CREATE)
{
static=CreateWindow(0, "STATIC", "", SS_NOTIFY | SS_BITMAP | WS_CHILD | WS_VISIBLE, 20, 100, 100, 20, gethwnd(0), 0, 0, 0);
sendmessage(STM_SETIMAGE, 0, image1, formatiw(static)); // установить изображение image1
}


function getmessage(0, WM_COMMAND)
{
if (message.lparam==static) // если нажата кнопка
{
sendmessage(STM_SETIMAGE, 0, image2, formatiw(static));
while(getkeystate(1))sleep(1);
sendmessage(STM_SETIMAGE, 0, image1, formatiw(static));

}
}

#define WS_VISIBLE 268435456
#define WS_CHILD 1073741824

#define SS_BITMAP 14
#define SS_NOTIFY 256
#define BM_SETIMAGE 247
#define STM_SETIMAGE 370

external(INT, "CreateWindow", "CreateWindowExA", "User32.dll" );
external(INT, "LoadImage", "LoadImageA", "User32.dll");


int static;

int image2=LoadImage(0, "C:\Users\Home\Desktop\222333\333.bmp", 0, 20, 20, 16);

createdialog(0);
showdialog(0, "Диалог",100, 100, 300, 150, 1, 1);

loop()sleep(1);

function getmessage(0, WM_CREATE)
{
static=CreateWindow(0, "STATIC", "", SS_NOTIFY | SS_BITMAP | WS_CHILD | WS_VISIBLE, 10, 20, 20, 20, gethwnd(0), 0, 0, 0);
int button2=CreateWindow(0, "BUTTON", "", 8+128+1342177280, 20, 60, 20, 20, gethwnd(0), 0, 0, 0); // создать кнопку

sendmessage(STM_SETIMAGE, 0, image2, formatiw(static)); // установить фон
sendmessage(BM_SETIMAGE, 0, image2, formatiw(button2)); // установить изображение кнопки
}

Что ни на кнопку, что ни на статик не выводит 20х20 бмп 24цветов.
Сам попробуй [img]http://s8.hostingkartinok.com/uploads/images/2019/09/9c8489e102c904cba9b25428a81d98c3.bmp[/img]

#definefile "C:\Users\Home\Desktop\ÌΨ\Kibor\Constants.txt";

external(INT, "CreateWindow", "CreateWindowExA", "User32.dll" );
external(INT, "LoadImage", "LoadImageA", "User32.dll");

int static;
int image2;
int button2;

createdialog(0);
showdialog(0, "Äèàëîã",100, 100, 300, 150, 1, 1);

loop()sleep(1);

function getmessage(0, WM_CREATE)
{
image2=LoadImage(0, "C:\Users\Home\Desktop\333.bmp", 0, 20, 20, 16);
static=CreateWindow(0, "STATIC", "", SS_NOTIFY | SS_BITMAP | WS_CHILD | WS_VISIBLE, 10, 20, 20, 20, gethwnd(0), 0, 0, 0);
button2=CreateWindow(0, "BUTTON", "", 8+128+1342177280, 20, 60, 20, 20, gethwnd(0), 0, 0, 0);

sendmessage(STM_SETIMAGE, 0, image2, formatiw(static));
sendmessage(BM_SETIMAGE, 0, image2, formatiw(button2));
}

#define BM_SETIMAGE 247
#define STM_SETIMAGE 370

external(INT, "CreateWindow", "CreateWindowExA", "User32.dll" );
external(INT, "LoadImage", "LoadImageA", "User32.dll" );


int image1=LoadImage(0, "d:\1.bmp", 0, 100, 34, 16); // загрузка картинки кнопки 100*34

createdialog(0);
showdialog(0, "Диалог",100, 100, 300, 300, 1, 0);

while(window ("Диалог")==0)sleep(10);
win w=window ("Диалог");

int static=CreateWindow(0, "STATIC", "", 128+14+1342177280, 0, 0, 300, 300, formatwi(w), 0, 0, 0); // создать статик, фон
int button1=CreateWindow(0, "BUTTON", "", 8+128+1342177280, 20, 10, 100, 34, formatwi(w), 0, 0, 0); // создать кнопку
int button2=CreateWindow(0, "BUTTON", "", 8+128+1342177280, 20, 60, 100, 50, formatwi(w), 0, 0, 0); // создать кнопку


sendmessage(STM_SETIMAGE, 0, image1, formatiw(static)); // установить изображение Статик
sendmessage(BM_SETIMAGE, 0, image1, formatiw(button2)); // установить изображение кнопки



loop()sleep(1);

function getmessage(0, WM_COMMAND)
{
if(message.lparam==button1)messagebox("Нажата кнопка Кнопка");
if(message.lparam==button2)messagebox("Нажата кнопка Текст");
}