display image in qlabel

[aj2903]

i want to display simple image on qlabel.
My application is on C: while the images to load is on D:\images\img1.jpg
The label is made in designer .

I have tried several way to load it but is unsuccessful.
Someone Please help

Here is the code i have tried :

Code 1 :

ui.label->setPixmap(QPixmap(D:\images\img1.jpg));

ui.label->setPixmap(QPixmap(D:\images\img1.jpg));

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Code 2:

QString img_path ="D:/images/img1.jpg";
ui.label->setPixmap(QPixmap(img_path));

QString img_path ="D:/images/img1.jpg";
ui.label->setPixmap(QPixmap(img_path));

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Please someone help to find the error.