Displaying an image over the other image using SFML library in CPP

[jyothi]

Hi,
I am working on game using SFML library.
I am trying to display image(new) on the another image(previous) by mouse click. Whenever I click on the particular position where I want to display, the new image is display on the blank background clearing previous image. new image is not overlapping on previous image.
Please help me out in this issue.

Thanks in advance.

[Satus]

Does second image have transparent background?

[jyothi]

first image size is (1024, 768) and second image is (33, 35)

[Nexus]

How does that answer Satus' question?

Use PNG images (with an alpha channel), and make sure the images are actually transparent. Draw them with the default blend mode (sf::BlendAlpha).

And please read this carefully: http://en.sfml-dev.org/forums/index.php?topic=5559.msg36368#msg36368

[Hapax]

I am trying to display image(new) on the another image(previous)
[...]
new image is not overlapping on previous image.

I don't think your question is clear. Is new in a completely different area from previous?
If one is "clearing" (not being drawn) without being overlapped, you must be stopping drawing it.

Is it possible that you don't have

window.clear();
window.draw(previousImage);
window.display();

every frame?