How do i increase the size of my tooltip in c++/cli? - c++

I want to increase the size of my tooltip as i want to insert an image as background to my tooltip. I am able to apply an image to my tooltip but the problem is the size of the tooltip being small only the upper part of the image is being displayed.
I am displaying image using Graphics Draw Image function. And I want the tooltip to take original size of an image without creating a rectangle as I tried all already.
I don't want to create my own tooltip. Just increase size of existing one.

I resolved it!! Just needed to add spaces on the property Tool tip on mytooltip on that control on which tool tip is used.Here i have used tool tip on my buttons.

Related

MITK Segmentation draw Rectangle

I have to segment a few things in a dataset I have (.nrrd-file) by drawing a rectangle around the area of interest and saving the segments (also as .nrrd-files).
I tried everything in the Segmentation-Tool that comes with MITK but I cannot seem to find a way to draw rectangles. I also tried to do some key combos (like holding shift, ctrl or alt) while drawing but in vain.
I know I can use the Measurement-Tool to select rectangles and save them (as .pf-files), but using that I'd have to write a some code to convert those selected rectangles into rectangle segmentations later on.
Does anyone know whether there's a possibility (that I didnt find yet) to draw rectangles in the Segmentation tool, or some other way so there's no need to write a workaround?
You can use the Image Cropper plugin in MITK 2016.11 for rectangular image masking and cropping (scissors icon).
Open the plugin, select your image in the Data Manager and click on the New button in the plugin to create a bounding object. You can modify the rectangular bounding shape in the render windows by dragging its red handles. You can move the whole shape by hovering over the bounding shape (it will turn green), click, and than drag.
Click on the Mask button if you want to get an image with the same dimensions in which all pixels outside the bounding shape are set to a user defined value (see the Advanced settings in the plugin). Click on the Crop button otherwise.
Note that you can always press F1 in any active MITK plugin to open a help page with detailed instructions.

SHGetImageList returns an icon that is too small for the size

I'm trying to retrieve file icons on Windows. I follow this guide http://pogopixels.com/blog/getting-the-48x48-or-256x256-icon-of-a-file-on-windows/
I use SHIL_JUMBO to get the maximum size possible. However, not all icons returned are big enough, such as the QuickTime icon in the attached image. The size of the whole pixmap returned is still 256x256 but it does not fill the entire space. My program will then scale it down, making it too tiny to see.
I'm wondering if I can retrieve some extra info such as the size of the original icon, so I know that it's too small to scale down.

How do I make the Slider Control's slider wider? (using MFC)

I'm wondering how would I adjust the slider to make the width wider then it is?
First image is an image of the current state.
The second image is an image of what I'm looking for..
The slider is a CSlierCtrl and I'm using mfc.
It sounds like you want CSliderCtrl::SetThumbLength().

Need a way to display image and draw on the image in Visual C++

The current way that I found was to make a bitmap and paint it into a picturebox,
but there it is very slow when trying to scroll the panel (the picturebox is inside a scrollable panel).
Is there a better way to achieve this functionality?
Load the bitmap only when your picture box is created, then leave it in memory until the picture box is destroyed. Loading the bitmap every time OnPaint is called will destroy performance.
Also make sure you aren't re-painting your bitmap if you receive a WM_PAINT message and nothing has changed.
That image size, 1500x2000 will be slow. How about resizing it to 25% to show a preview and if a user wishes to see the whole image give them an alert it may take some time.

How to display different size images in CListCtrl

In my MFC program,I want to display different size images in a list!
I use CListCtrl and CImageList!
But the CImageList only can load fixed images!
Variable row heights in CListCtrl is not supported. You could take a look at this article that describes a control based on CWnd that handles drawing of variable row heights.
I would consider to use the so called "owner drawn" mode to draw these myself. I don't know about another option (there is no built-in mode)... Maybe you can also take the biggest size and fit the smaller images into the bigger frames but I think it will be the same effort and be less efficient...
I mean use the
CListCtrl::DrawItem()
method
Create a "grid," a non-symmetrical grid most likely, on a dialog or Form. Then populate it with irregular shaped images as you choose. If you need more space look into a Scrollable “whatever,” view, dialog, etc.
Irregular or non rectangular shaped bitmaps seems a good place to start.