qpixmap

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displaying image from sqlite error

I have saved an image in sqlite and i am trying to retrieve it and displaying it in a QLabel using this code.[详细]

2023-04-09 19:39 分类：问答
mupdf: how to put a fz_pixmap into Qt4 QPixmap

I am trying to exploit mupdf library (Qt4 app). I have taken some code from pdfdraw.c. I was able t开发者_如何学运维o create a pixmap (fz_pixmap) from a pdf page. Now I need to display the pixmap. It[详细]

2023-04-05 08:07 分类：问答
How to declare and instantiate a variable in Qt?

At first I want to apologize for this stupid question, but I\'m fairly new to Q开发者_如何学Pythont, so forgive me ;)[详细]

2023-03-31 18:49 分类：问答
QPixmap image loading problem

Basically I am trying to load the image as a texture using QPixmap: texture[T_WALL] = bindTexture(QPixmap(\":/images/wall.png\"), GL_TEXTURE_2D);[详细]

2023-03-26 13:59 分类：问答
Stitch together multiple QPixmaps

I\'m looking for a method, no matter how roundabout, to horizontally stitch together three pixmaps into one (ie 20x20 + 20x20 + 20x20 -> 60x20). If it helps any, what I actually have is three png reso[详细]

2023-03-26 06:35 分类：问答
Load QPixmap from QByteArray in Qt?

I have a byte array with the conte开发者_如何学编程nts of an image (in png/bmp or some other format).[详细]

2023-03-22 18:08 分类：问答
How to convert QPixmap into a Matrix

I have been looking for such answers. I开发者_开发百科 found this method in QPixmap transformed() though I think it does not help me in my pursuit of searching a method to convert QPixmap Images (gra[详细]

2023-03-19 09:03 分类：问答
is there any way to insert QPixmap object in html?

Simple situation: I have an object, which has a QPixmap member. Object first created (pixmap is null now), then pixmap readed from data base and inserted in object. I need to insert that pixmap in htm[详细]

2023-03-17 13:22 分类：问答
Convert IplImage to Qpixmap

How开发者_开发知识库 do we convert IplImage to a QPixmap or QImage? If the only answer is save the Iplimage then load it to the QPixmap, then how do we do that? I just found an interesting piece of[详细]

2023-03-15 00:01 分类：问答
Can't Get Touch Inputs in QPixMap(image) in QView

I have a QScene object in QWidget and inside QWidget I have QGraphicsView. I convert images to QPixMap give it to QScene as an element and I defined touch events in QGraphicsView class. In QGraphicsVi[详细]

2023-03-11 18:21 分类：问答