resize

问题 How do you resize a global hwnd variable during runtime when a button is clicked? Or just any way to resize the window during runtime. i.e. HWND hwnd; //global int buttonid = 250; // an id for a button //also global int WINAPI wWinMain(/*blah blah blah */) { //blah blah blah hwnd = CreateWindowEx( 0, L"WindowClass", L"Window", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 300, 275, NULL, NULL, hInstance, NULL ); HWND mybutton = CreateWindow( L"BUTTON", L"Button", WS_VISIBLE | WS_CHILD |

问题 How do you resize a global hwnd variable during runtime when a button is clicked? Or just any way to resize the window during runtime. i.e. HWND hwnd; //global int buttonid = 250; // an id for a button //also global int WINAPI wWinMain(/*blah blah blah */) { //blah blah blah hwnd = CreateWindowEx( 0, L"WindowClass", L"Window", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 300, 275, NULL, NULL, hInstance, NULL ); HWND mybutton = CreateWindow( L"BUTTON", L"Button", WS_VISIBLE | WS_CHILD |

问题 Photoshop has that great: BiCube Shaper option for resizing. However I cannot find an equivalent. I've seen various code using GD that used imagecopyresampled and custom unsharp mask, but no where near the quality I am expecting. Any help? 回答1: If all you've tried is GD, you might want to give some of the ImageMagick sampling filters a shot. Here's a page that examines them along with the PhotoShop ones: http://www.xs4all.nl/~bvdwolf/main/foto/down_sample/down_sample.htm 来源： https:/

问题 Currently I use shm_open to get a file descriptor and then use ftruncate and mmap whenever I want to add a new buffer to the shared memory. Each buffer is used individually for its own purposes. Now what I need to do is arbitrarily resize buffers. And also munmap buffers and reuse the free space again later. The only solution I can come up with for the first problem is: ftuncate(file_size + old_buffer_size + extra_size), mmap, copy data accross into the new buffer and then munmap the original

问题 Currently I use shm_open to get a file descriptor and then use ftruncate and mmap whenever I want to add a new buffer to the shared memory. Each buffer is used individually for its own purposes. Now what I need to do is arbitrarily resize buffers. And also munmap buffers and reuse the free space again later. The only solution I can come up with for the first problem is: ftuncate(file_size + old_buffer_size + extra_size), mmap, copy data accross into the new buffer and then munmap the original

问题 Description I was trying to create a FlowLayoutPanel that can be extended, for instance in the horizontal way. FlowLayoutPanel and its sub component anchor has been set to Top-Left-Right FlowLayoutPanel direction has been set to TopDown. -> When rezising the FlowLayoutPanel, its sub- components are not resized accordinally. Step to reproduce Create a FlowLayoutPanel control on your form. Set the FlowDirection of the FlowLayoutPanel to TopDown. Create a Button controls, and place it in the

问题 I am calling a function when the window is resized like this: window.addEventListener("resize", calculateDimensions()); But I need a way to call a different function AFTER the window has been resized. Is there any way to achieve this using native js (not jquery) TIA 回答1: You could set a Timeout and reset it when resize is fired again. So the last timeout isnt canceled and the function is run: function debounce(func){ var timer; return function(event){ if(timer) clearTimeout(timer); timer =

问题 I can't understand how scaling and rotation are applied to QGraphicsItem . I need to be able to apply rotation and scaling ( not necessarily keeping aspect ratio ) and I get fully unexpected results. Rotation must be around the item center. I seem to have no problem doing that - yet if I try to debug the bounding rectangle, I get seemingly wrong values. If I don't keep aspect ratio, instead of rotation I get a very weird skew, and I have been struggling for quite a while to find the cause and

问题 I can't understand how scaling and rotation are applied to QGraphicsItem . I need to be able to apply rotation and scaling ( not necessarily keeping aspect ratio ) and I get fully unexpected results. Rotation must be around the item center. I seem to have no problem doing that - yet if I try to debug the bounding rectangle, I get seemingly wrong values. If I don't keep aspect ratio, instead of rotation I get a very weird skew, and I have been struggling for quite a while to find the cause and

问题 When I zoom in and out on my webpage in Google Chrome, items that are precisely positioned in relation to one another will change position. This causes many problems: For example, at specific zoom levels a div will overlap its containing div just enough to hide a border. Similarly, sometimes a 100% marker will not precisely line up with the 100% point. Is there any way I can ensure that the positioning of the items in relation to each other will not change when the page is zoomed in or out?